diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
index 99751d1239..de918c85f0 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
@@ -45,13 +45,15 @@ class TranslatorTest extends \PHPUnit_Framework_TestCase
     {
         $translator = $this->getTranslator($this->getLoader());
         $translator->setLocale('fr');
-        $translator->setFallbackLocale(array('en', 'es'));
+        $translator->setFallbackLocale(array('en', 'es', 'pt-PT', 'pt_BR'));
 
         $this->assertEquals('foo (FR)', $translator->trans('foo'));
         $this->assertEquals('bar (EN)', $translator->trans('bar'));
         $this->assertEquals('foobar (ES)', $translator->trans('foobar'));
         $this->assertEquals('choice 0 (EN)', $translator->transChoice('choice', 0));
         $this->assertEquals('no translation', $translator->trans('no translation'));
+        $this->assertEquals('foobarfoo (PT-PT)', $translator->trans('foobarfoo'));
+        $this->assertEquals('other choice 1 (PT-BR)', $translator->transChoice('other choice', 1));
     }
 
     public function testTransWithCaching()
@@ -59,25 +61,29 @@ class TranslatorTest extends \PHPUnit_Framework_TestCase
         // prime the cache
         $translator = $this->getTranslator($this->getLoader(), array('cache_dir' => $this->tmpDir));
         $translator->setLocale('fr');
-        $translator->setFallbackLocale(array('en', 'es'));
+        $translator->setFallbackLocale(array('en', 'es', 'pt-PT', 'pt_BR'));
 
         $this->assertEquals('foo (FR)', $translator->trans('foo'));
         $this->assertEquals('bar (EN)', $translator->trans('bar'));
         $this->assertEquals('foobar (ES)', $translator->trans('foobar'));
         $this->assertEquals('choice 0 (EN)', $translator->transChoice('choice', 0));
         $this->assertEquals('no translation', $translator->trans('no translation'));
+        $this->assertEquals('foobarfoo (PT-PT)', $translator->trans('foobarfoo'));
+        $this->assertEquals('other choice 1 (PT-BR)', $translator->transChoice('other choice', 1));
 
         // do it another time as the cache is primed now
         $loader = $this->getMock('Symfony\Component\Translation\Loader\LoaderInterface');
         $translator = $this->getTranslator($loader, array('cache_dir' => $this->tmpDir));
         $translator->setLocale('fr');
-        $translator->setFallbackLocale(array('en', 'es'));
+        $translator->setFallbackLocale(array('en', 'es', 'pt-PT', 'pt_BR'));
 
         $this->assertEquals('foo (FR)', $translator->trans('foo'));
         $this->assertEquals('bar (EN)', $translator->trans('bar'));
         $this->assertEquals('foobar (ES)', $translator->trans('foobar'));
         $this->assertEquals('choice 0 (EN)', $translator->transChoice('choice', 0));
         $this->assertEquals('no translation', $translator->trans('no translation'));
+        $this->assertEquals('foobarfoo (PT-PT)', $translator->trans('foobarfoo'));
+        $this->assertEquals('other choice 1 (PT-BR)', $translator->transChoice('other choice', 1));
     }
 
     public function testGetLocale()
@@ -155,6 +161,20 @@ class TranslatorTest extends \PHPUnit_Framework_TestCase
                 'foobar' => 'foobar (ES)',
             ))))
         ;
+        $loader
+            ->expects($this->at(3))
+            ->method('load')
+            ->will($this->returnValue($this->getCatalogue('pt-PT', array(
+                'foobarfoo' => 'foobarfoo (PT-PT)',
+            ))))
+        ;
+        $loader
+            ->expects($this->at(4))
+            ->method('load')
+            ->will($this->returnValue($this->getCatalogue('pt_BR', array(
+                'other choice' => '{0} other choice 0 (PT-BR)|{1} other choice 1 (PT-BR)|]1,Inf] other choice inf (PT-BR)',
+            ))))
+        ;
 
         return $loader;
     }
@@ -183,6 +203,8 @@ class TranslatorTest extends \PHPUnit_Framework_TestCase
         $translator->addResource('loader', 'foo', 'fr');
         $translator->addResource('loader', 'foo', 'en');
         $translator->addResource('loader', 'foo', 'es');
+        $translator->addResource('loader', 'foo', 'pt-PT'); // European Portuguese
+        $translator->addResource('loader', 'foo', 'pt_BR'); // Brazilian Portuguese
 
         return $translator;
     }
diff --git a/src/Symfony/Bundle/FrameworkBundle/Translation/Translator.php b/src/Symfony/Bundle/FrameworkBundle/Translation/Translator.php
index efb40aa4a6..1705c1ac06 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Translation/Translator.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Translation/Translator.php
@@ -98,6 +98,8 @@ class Translator extends BaseTranslator
             $fallbackContent = '';
             $current = '';
             foreach ($this->computeFallbackLocales($locale) as $fallback) {
+                $fallbackSuffix = ucfirst(str_replace('-', '_', $fallback));
+
                 $fallbackContent .= sprintf(<<<EOF
 \$catalogue%s = new MessageCatalogue('%s', %s);
 \$catalogue%s->addFallbackCatalogue(\$catalogue%s);
@@ -105,11 +107,11 @@ class Translator extends BaseTranslator
 
 EOF
                     ,
-                    ucfirst($fallback),
+                    $fallbackSuffix,
                     $fallback,
                     var_export($this->catalogues[$fallback]->all(), true),
-                    ucfirst($current),
-                    ucfirst($fallback)
+                    ucfirst(str_replace('-', '_', $current)),
+                    $fallbackSuffix
                 );
                 $current = $fallback;
             }