diff --git a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
index 3bfa0c3188..c66c3bcf7c 100644
--- a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
+++ b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
@@ -191,7 +191,7 @@ class PhpDumper extends Dumper
                     $regex = preg_quote(\DIRECTORY_SEPARATOR.$dir[$i], '#').$regex;
                 } while (0 < --$i);
 
-                $this->targetDirRegex = '#'.preg_quote($dir[0], '#').$regex.'#';
+                $this->targetDirRegex = '#(^|file://|[:;, \|\r\n])'.preg_quote($dir[0], '#').$regex.'#';
             }
         }
 
@@ -1993,11 +1993,12 @@ EOF;
     private function export($value)
     {
         if (null !== $this->targetDirRegex && \is_string($value) && preg_match($this->targetDirRegex, $value, $matches, PREG_OFFSET_CAPTURE)) {
-            $prefix = $matches[0][1] ? $this->doExport(substr($value, 0, $matches[0][1]), true).'.' : '';
             $suffix = $matches[0][1] + \strlen($matches[0][0]);
+            $matches[0][1] += \strlen($matches[1][0]);
+            $prefix = $matches[0][1] ? $this->doExport(substr($value, 0, $matches[0][1]), true).'.' : '';
             $suffix = isset($value[$suffix]) ? '.'.$this->doExport(substr($value, $suffix), true) : '';
             $dirname = $this->asFiles ? '$this->containerDir' : '__DIR__';
-            $offset = 1 + $this->targetDirMaxMatches - \count($matches);
+            $offset = 2 + $this->targetDirMaxMatches - \count($matches);
 
             if ($this->asFiles || 0 < $offset) {
                 $dirname = sprintf('$this->targetDirs[%d]', $offset);
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php b/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
index b2cbb3caf6..946d09c748 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
@@ -98,7 +98,7 @@ class PhpDumperTest extends TestCase
 
         $container = new ContainerBuilder();
         $container->setDefinition('test', $definition);
-        $container->setParameter('foo', 'wiz'.\dirname(__DIR__));
+        $container->setParameter('foo', 'file://'.\dirname(__DIR__));
         $container->setParameter('bar', __DIR__);
         $container->setParameter('baz', '%bar%/PhpDumperTest.php');
         $container->setParameter('buz', \dirname(\dirname(__DIR__)));
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php
index 0e8f581e8a..eb21559686 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/php/services12.php
@@ -67,7 +67,7 @@ class ProjectServiceContainer extends Container
      */
     protected function getTestService()
     {
-        return $this->services['test'] = new \stdClass(('wiz'.$this->targetDirs[1]), [('wiz'.$this->targetDirs[1]) => ($this->targetDirs[2].'/')]);
+        return $this->services['test'] = new \stdClass(('file://'.$this->targetDirs[1]), [('file://'.$this->targetDirs[1]) => ($this->targetDirs[2].'/')]);
     }
 
     public function getParameter($name)
@@ -131,7 +131,7 @@ class ProjectServiceContainer extends Container
     private function getDynamicParameter($name)
     {
         switch ($name) {
-            case 'foo': $value = ('wiz'.$this->targetDirs[1]); break;
+            case 'foo': $value = ('file://'.$this->targetDirs[1]); break;
             case 'buz': $value = $this->targetDirs[2]; break;
             default: throw new InvalidArgumentException(sprintf('The dynamic parameter "%s" must be defined.', $name));
         }