diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
index a1d03e7280f97..d5a024fb27195 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
@@ -1170,14 +1170,15 @@ private function registerTranslatorConfiguration(array $config, ContainerBuilder
                 ->followLinks()
                 ->files()
                 ->filter(function (\SplFileInfo $file) {
-                    return 2 === substr_count($file->getBasename(), '.') && preg_match('/\.\w+$/', $file->getBasename());
+                    return 2 <= substr_count($file->getBasename(), '.') && preg_match('/\.\w+$/', $file->getBasename());
                 })
                 ->in($dirs)
                 ->sortByName()
             ;
 
             foreach ($finder as $file) {
-                list(, $locale) = explode('.', $file->getBasename(), 3);
+                $fileNameParts = explode('.', basename($file));
+                $locale = $fileNameParts[\count($fileNameParts) - 2];
                 if (!isset($files[$locale])) {
                     $files[$locale] = [];
                 }
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/translations/domain.with.dots.en.yml b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/translations/domain.with.dots.en.yml
new file mode 100644
index 0000000000000..5c81ae664d603
--- /dev/null
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/translations/domain.with.dots.en.yml
@@ -0,0 +1,3 @@
+domain:
+    with:
+        dots: It works!
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
index 25b7353523906..59e45d2ae7e1a 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
@@ -817,6 +817,11 @@ public function testTranslator()
             $files,
             '->registerTranslatorConfiguration() finds translation resources in default path'
         );
+        $this->assertContains(
+            strtr(__DIR__.'/Fixtures/translations/domain.with.dots.en.yml', '/', \DIRECTORY_SEPARATOR),
+            $files,
+            '->registerTranslatorConfiguration() finds translation resources with dots in domain'
+        );
 
         $calls = $container->getDefinition('translator.default')->getMethodCalls();
         $this->assertEquals(['fr'], $calls[1][1][0]);
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Resources/translations/domain.with.dots.en.yml b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Resources/translations/domain.with.dots.en.yml
new file mode 100644
index 0000000000000..28d7fb750dbb4
--- /dev/null
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Resources/translations/domain.with.dots.en.yml
@@ -0,0 +1 @@
+message: It works!
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
index 43d858e452e5d..61f600a03f265 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Translation/TranslatorTest.php
@@ -373,6 +373,21 @@ public function testWarmup()
         $this->assertEquals('répertoire', $translator->trans('folder'));
     }
 
+    public function testLoadingTranslationFilesWithDotsInMessageDomain()
+    {
+        $loader = new \Symfony\Component\Translation\Loader\YamlFileLoader();
+        $resourceFiles = [
+            'en' => [
+                __DIR__.'/../Fixtures/Resources/translations/domain.with.dots.en.yml',
+            ],
+        ];
+
+        $translator = $this->getTranslator($loader, ['cache_dir' => $this->tmpDir, 'resource_files' => $resourceFiles], 'yml');
+        $translator->setLocale('en');
+        $translator->setFallbackLocales(['fr']);
+        $this->assertEquals('It works!', $translator->trans('message', [], 'domain.with.dots'));
+    }
+
     private function createTranslator($loader, $options, $translatorClass = '\Symfony\Bundle\FrameworkBundle\Translation\Translator', $loaderFomat = 'loader', $defaultLocale = 'en')
     {
         if (null === $defaultLocale) {
diff --git a/src/Symfony/Bundle/FrameworkBundle/Translation/Translator.php b/src/Symfony/Bundle/FrameworkBundle/Translation/Translator.php
index a32e32f898333..1b2dc7e3fa60d 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Translation/Translator.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Translation/Translator.php
@@ -165,7 +165,10 @@ private function addResourceFiles()
         foreach ($filesByLocale as $locale => $files) {
             foreach ($files as $key => $file) {
                 // filename is domain.locale.format
-                list($domain, $locale, $format) = explode('.', basename($file), 3);
+                $fileNameParts = explode('.', basename($file));
+                $format = array_pop($fileNameParts);
+                $locale = array_pop($fileNameParts);
+                $domain = implode('.', $fileNameParts);
                 $this->addResource($format, $file, $locale, $domain);
             }
         }