diff --git a/src/Symfony/Bridge/Twig/Tests/Extension/TranslationExtensionTest.php b/src/Symfony/Bridge/Twig/Tests/Extension/TranslationExtensionTest.php
index 0235c4da327a0..e96bd4f9a3bef 100644
--- a/src/Symfony/Bridge/Twig/Tests/Extension/TranslationExtensionTest.php
+++ b/src/Symfony/Bridge/Twig/Tests/Extension/TranslationExtensionTest.php
@@ -36,7 +36,7 @@ public function testTrans($template, $expected, array $variables = array())
             $twig = new \Twig_Environment($loader, array('debug' => true, 'cache' => false));
             $twig->addExtension(new TranslationExtension(new Translator('en', new MessageSelector())));
 
-            echo $twig->compile($twig->parse($twig->tokenize(new \Twig_Source($twig->getLoader()->getSource('index'), 'index'))))."\n\n";
+            echo $twig->compile($twig->parse($twig->tokenize($twig->getLoader()->getSourceContext('index'))))."\n\n";
             $this->assertEquals($expected, $this->getTemplate($template)->render($variables));
         }
 
diff --git a/src/Symfony/Bridge/Twig/TwigEngine.php b/src/Symfony/Bridge/Twig/TwigEngine.php
index 3e3257e7fa0f5..1ac9d0102e63b 100644
--- a/src/Symfony/Bridge/Twig/TwigEngine.php
+++ b/src/Symfony/Bridge/Twig/TwigEngine.php
@@ -75,14 +75,14 @@ public function exists($name)
 
         $loader = $this->environment->getLoader();
 
-        if ($loader instanceof \Twig_ExistsLoaderInterface) {
+        if ($loader instanceof \Twig_ExistsLoaderInterface || method_exists($loader, 'exists')) {
             return $loader->exists((string) $name);
         }
 
         try {
             // cast possible TemplateReferenceInterface to string because the
             // EngineInterface supports them but Twig_LoaderInterface does not
-            $loader->getSource((string) $name);
+            $loader->getSourceContext((string) $name)->getCode();
         } catch (\Twig_Error_Loader $e) {
             return false;
         }
diff --git a/src/Symfony/Bundle/TwigBundle/Controller/ExceptionController.php b/src/Symfony/Bundle/TwigBundle/Controller/ExceptionController.php
index 3eec8d6be92ec..b6972fc6354cd 100644
--- a/src/Symfony/Bundle/TwigBundle/Controller/ExceptionController.php
+++ b/src/Symfony/Bundle/TwigBundle/Controller/ExceptionController.php
@@ -131,12 +131,12 @@ protected function templateExists($template)
         $template = (string) $template;
 
         $loader = $this->twig->getLoader();
-        if ($loader instanceof \Twig_ExistsLoaderInterface) {
+        if ($loader instanceof \Twig_ExistsLoaderInterface || method_exists($loader, 'exists')) {
             return $loader->exists($template);
         }
 
         try {
-            $loader->getSource($template);
+            $loader->getSourceContext($template)->getCode();
 
             return true;
         } catch (\Twig_Error_Loader $e) {
diff --git a/src/Symfony/Component/HttpKernel/Fragment/HIncludeFragmentRenderer.php b/src/Symfony/Component/HttpKernel/Fragment/HIncludeFragmentRenderer.php
index 56c96b3ceda3f..27051cfb772ee 100644
--- a/src/Symfony/Component/HttpKernel/Fragment/HIncludeFragmentRenderer.php
+++ b/src/Symfony/Component/HttpKernel/Fragment/HIncludeFragmentRenderer.php
@@ -140,12 +140,16 @@ private function templateExists($template)
         }
 
         $loader = $this->templating->getLoader();
-        if ($loader instanceof \Twig_ExistsLoaderInterface) {
+        if ($loader instanceof \Twig_ExistsLoaderInterface || method_exists($loader, 'exists')) {
             return $loader->exists($template);
         }
 
         try {
-            $loader->getSource($template);
+            if (method_exists($loader, 'getSourceContext')) {
+                $loader->getSourceContext($template);
+            } else {
+                $loader->getSource($template);
+            }
 
             return true;
         } catch (\Twig_Error_Loader $e) {