diff --git a/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php b/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
index fb147bced5..12aa644694 100644
--- a/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
+++ b/src/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
@@ -294,7 +294,7 @@ EOF;
         }
 
         // optimize parameters array
-        if (($matches || $hostnameMatches) && $route->getDefaults()) {
+        if ($matches || $hostnameMatches) {
             $vars = array();
             if ($hostnameMatches) {
                 $vars[] = '$hostnameMatches';
@@ -307,16 +307,6 @@ EOF;
             $code .= sprintf("            return \$this->mergeDefaults(array_replace(%s), %s);\n"
                 , implode(', ', $vars), str_replace("\n", '', var_export($route->getDefaults(), true)));
 
-        } elseif ($matches || $hostnameMatches) {
-
-            if (!$matches) {
-                $code .= "            \$matches = \$hostnameMatches;\n";
-            } elseif ($hostnameMatches) {
-                $code .= "            \$matches = array_replace(\$hostnameMatches, \$matches);\n";
-            }
-
-            $code .= sprintf("            \$matches['_route'] = '%s';\n\n", $name);
-            $code .= "            return \$matches;\n";
         } elseif ($route->getDefaults()) {
             $code .= sprintf("            return %s;\n", str_replace("\n", '', var_export(array_replace($route->getDefaults(), array('_route' => $name)), true)));
         } else {
diff --git a/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher1.php b/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher1.php
index 98d3cce44e..19ed9ca13f 100644
--- a/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher1.php
+++ b/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher1.php
@@ -38,9 +38,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
                     goto not_bar;
                 }
 
-                $matches['_route'] = 'bar';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'bar')), array ());
             }
             not_bar:
 
@@ -51,9 +49,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
                     goto not_barhead;
                 }
 
-                $matches['_route'] = 'barhead';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'barhead')), array ());
             }
             not_barhead:
 
@@ -80,9 +76,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
 
             // baz4
             if (preg_match('#^/test/(?<foo>[^/]++)/$#s', $pathinfo, $matches)) {
-                $matches['_route'] = 'baz4';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'baz4')), array ());
             }
 
             // baz5
@@ -92,9 +86,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
                     goto not_baz5;
                 }
 
-                $matches['_route'] = 'baz5';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'baz5')), array ());
             }
             not_baz5:
 
@@ -105,9 +97,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
                     goto not_bazbaz6;
                 }
 
-                $matches['_route'] = 'baz.baz6';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'baz.baz6')), array ());
             }
             not_bazbaz6:
 
@@ -120,9 +110,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
 
         // quoter
         if (preg_match('#^/(?<quoter>[\']+)$#s', $pathinfo, $matches)) {
-            $matches['_route'] = 'quoter';
-
-            return $matches;
+            return $this->mergeDefaults(array_replace($matches, array('_route' => 'quoter')), array ());
         }
 
         // space
@@ -134,40 +122,30 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
             if (0 === strpos($pathinfo, '/a/b\'b')) {
                 // foo1
                 if (preg_match('#^/a/b\'b/(?<foo>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'foo1';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'foo1')), array ());
                 }
 
                 // bar1
                 if (preg_match('#^/a/b\'b/(?<bar>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'bar1';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'bar1')), array ());
                 }
 
             }
 
             // overridden
             if (preg_match('#^/a/(?<var>.*)$#s', $pathinfo, $matches)) {
-                $matches['_route'] = 'overridden';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'overridden')), array ());
             }
 
             if (0 === strpos($pathinfo, '/a/b\'b')) {
                 // foo2
                 if (preg_match('#^/a/b\'b/(?<foo1>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'foo2';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'foo2')), array ());
                 }
 
                 // bar2
                 if (preg_match('#^/a/b\'b/(?<bar1>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'bar2';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'bar2')), array ());
                 }
 
             }
@@ -194,16 +172,12 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
 
         // foo3
         if (preg_match('#^/(?<_locale>[^/]++)/b/(?<foo>[^/]++)$#s', $pathinfo, $matches)) {
-            $matches['_route'] = 'foo3';
-
-            return $matches;
+            return $this->mergeDefaults(array_replace($matches, array('_route' => 'foo3')), array ());
         }
 
         // bar3
         if (preg_match('#^/(?<_locale>[^/]++)/b/(?<bar>[^/]++)$#s', $pathinfo, $matches)) {
-            $matches['_route'] = 'bar3';
-
-            return $matches;
+            return $this->mergeDefaults(array_replace($matches, array('_route' => 'bar3')), array ());
         }
 
         if (0 === strpos($pathinfo, '/aba')) {
@@ -214,9 +188,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
 
             // foo4
             if (preg_match('#^/aba/(?<foo>[^/]++)$#s', $pathinfo, $matches)) {
-                $matches['_route'] = 'foo4';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'foo4')), array ());
             }
 
         }
@@ -269,10 +241,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
             if (0 === strpos($pathinfo, '/route1')) {
                 // route11
                 if ($pathinfo === '/route11') {
-                    $matches = $hostnameMatches;
-                    $matches['_route'] = 'route11';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($hostnameMatches, array('_route' => 'route11')), array ());
                 }
 
                 // route12
@@ -282,10 +251,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
 
                 // route13
                 if (0 === strpos($pathinfo, '/route13') && preg_match('#^/route13/(?<name>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches = array_replace($hostnameMatches, $matches);
-                    $matches['_route'] = 'route13';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($hostnameMatches, $matches, array('_route' => 'route13')), array ());
                 }
 
                 // route14
@@ -300,9 +266,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
         if (preg_match('#^c\\.example\\.com$#s', $hostname, $hostnameMatches)) {
             // route15
             if (0 === strpos($pathinfo, '/route15') && preg_match('#^/route15/(?<name>[^/]++)$#s', $pathinfo, $matches)) {
-                $matches['_route'] = 'route15';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'route15')), array ());
             }
 
         }
@@ -329,16 +293,12 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
             if (0 === strpos($pathinfo, '/a/b')) {
                 // b
                 if (preg_match('#^/a/b/(?<var>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'b';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'b')), array ());
                 }
 
                 // c
                 if (0 === strpos($pathinfo, '/a/b/c') && preg_match('#^/a/b/c/(?<var>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'c';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'c')), array ());
                 }
 
             }
diff --git a/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher2.php b/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher2.php
index f4de7eb1b2..6063042d0d 100644
--- a/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher2.php
+++ b/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher2.php
@@ -38,9 +38,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
                     goto not_bar;
                 }
 
-                $matches['_route'] = 'bar';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'bar')), array ());
             }
             not_bar:
 
@@ -51,9 +49,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
                     goto not_barhead;
                 }
 
-                $matches['_route'] = 'barhead';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'barhead')), array ());
             }
             not_barhead:
 
@@ -88,9 +84,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
                     return $this->redirect($pathinfo.'/', 'baz4');
                 }
 
-                $matches['_route'] = 'baz4';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'baz4')), array ());
             }
 
             // baz5
@@ -100,9 +94,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
                     goto not_baz5;
                 }
 
-                $matches['_route'] = 'baz5';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'baz5')), array ());
             }
             not_baz5:
 
@@ -113,9 +105,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
                     goto not_bazbaz6;
                 }
 
-                $matches['_route'] = 'baz.baz6';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'baz.baz6')), array ());
             }
             not_bazbaz6:
 
@@ -128,9 +118,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
 
         // quoter
         if (preg_match('#^/(?<quoter>[\']+)$#s', $pathinfo, $matches)) {
-            $matches['_route'] = 'quoter';
-
-            return $matches;
+            return $this->mergeDefaults(array_replace($matches, array('_route' => 'quoter')), array ());
         }
 
         // space
@@ -142,40 +130,30 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
             if (0 === strpos($pathinfo, '/a/b\'b')) {
                 // foo1
                 if (preg_match('#^/a/b\'b/(?<foo>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'foo1';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'foo1')), array ());
                 }
 
                 // bar1
                 if (preg_match('#^/a/b\'b/(?<bar>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'bar1';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'bar1')), array ());
                 }
 
             }
 
             // overridden
             if (preg_match('#^/a/(?<var>.*)$#s', $pathinfo, $matches)) {
-                $matches['_route'] = 'overridden';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'overridden')), array ());
             }
 
             if (0 === strpos($pathinfo, '/a/b\'b')) {
                 // foo2
                 if (preg_match('#^/a/b\'b/(?<foo1>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'foo2';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'foo2')), array ());
                 }
 
                 // bar2
                 if (preg_match('#^/a/b\'b/(?<bar1>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'bar2';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'bar2')), array ());
                 }
 
             }
@@ -206,16 +184,12 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
 
         // foo3
         if (preg_match('#^/(?<_locale>[^/]++)/b/(?<foo>[^/]++)$#s', $pathinfo, $matches)) {
-            $matches['_route'] = 'foo3';
-
-            return $matches;
+            return $this->mergeDefaults(array_replace($matches, array('_route' => 'foo3')), array ());
         }
 
         // bar3
         if (preg_match('#^/(?<_locale>[^/]++)/b/(?<bar>[^/]++)$#s', $pathinfo, $matches)) {
-            $matches['_route'] = 'bar3';
-
-            return $matches;
+            return $this->mergeDefaults(array_replace($matches, array('_route' => 'bar3')), array ());
         }
 
         if (0 === strpos($pathinfo, '/aba')) {
@@ -226,9 +200,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
 
             // foo4
             if (preg_match('#^/aba/(?<foo>[^/]++)$#s', $pathinfo, $matches)) {
-                $matches['_route'] = 'foo4';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'foo4')), array ());
             }
 
         }
@@ -281,10 +253,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
             if (0 === strpos($pathinfo, '/route1')) {
                 // route11
                 if ($pathinfo === '/route11') {
-                    $matches = $hostnameMatches;
-                    $matches['_route'] = 'route11';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($hostnameMatches, array('_route' => 'route11')), array ());
                 }
 
                 // route12
@@ -294,10 +263,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
 
                 // route13
                 if (0 === strpos($pathinfo, '/route13') && preg_match('#^/route13/(?<name>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches = array_replace($hostnameMatches, $matches);
-                    $matches['_route'] = 'route13';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($hostnameMatches, $matches, array('_route' => 'route13')), array ());
                 }
 
                 // route14
@@ -312,9 +278,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
         if (preg_match('#^c\\.example\\.com$#s', $hostname, $hostnameMatches)) {
             // route15
             if (0 === strpos($pathinfo, '/route15') && preg_match('#^/route15/(?<name>[^/]++)$#s', $pathinfo, $matches)) {
-                $matches['_route'] = 'route15';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'route15')), array ());
             }
 
         }
@@ -341,16 +305,12 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Tests\Fixtures\Redirec
             if (0 === strpos($pathinfo, '/a/b')) {
                 // b
                 if (preg_match('#^/a/b/(?<var>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'b';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'b')), array ());
                 }
 
                 // c
                 if (0 === strpos($pathinfo, '/a/b/c') && preg_match('#^/a/b/c/(?<var>[^/]++)$#s', $pathinfo, $matches)) {
-                    $matches['_route'] = 'c';
-
-                    return $matches;
+                    return $this->mergeDefaults(array_replace($matches, array('_route' => 'c')), array ());
                 }
 
             }
diff --git a/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher3.php b/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher3.php
index a0b1320a76..7dbdffef85 100644
--- a/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher3.php
+++ b/src/Symfony/Component/Routing/Tests/Fixtures/dumper/url_matcher3.php
@@ -33,9 +33,7 @@ class ProjectUrlMatcher extends Symfony\Component\Routing\Matcher\UrlMatcher
 
             // dynamic
             if (preg_match('#^/rootprefix/(?<var>[^/]++)$#s', $pathinfo, $matches)) {
-                $matches['_route'] = 'dynamic';
-
-                return $matches;
+                return $this->mergeDefaults(array_replace($matches, array('_route' => 'dynamic')), array ());
             }
 
         }