diff --git a/src/Symfony/Component/ClassLoader/DebugUniversalClassLoader.php b/src/Symfony/Component/ClassLoader/DebugUniversalClassLoader.php
index 83220c98b64a..52bf3e974ddb 100644
--- a/src/Symfony/Component/ClassLoader/DebugUniversalClassLoader.php
+++ b/src/Symfony/Component/ClassLoader/DebugUniversalClassLoader.php
@@ -34,8 +34,8 @@ static public function enable()
         foreach ($functions as $function) {
             if (is_array($function) && $function[0] instanceof UniversalClassLoader) {
                 $loader = new static();
-                $loader->registerNamespaceFallback($function[0]->getNamespaceFallback());
-                $loader->registerPrefixFallback($function[0]->getPrefixFallback());
+                $loader->registerNamespaceFallbacks($function[0]->getNamespaceFallbacks());
+                $loader->registerPrefixFallbacks($function[0]->getPrefixFallbacks());
                 $loader->registerNamespaces($function[0]->getNamespaces());
                 $loader->registerPrefixes($function[0]->getPrefixes());
 
diff --git a/tests/Symfony/Tests/Component/ClassLoader/ApcUniversalClassLoaderTest.php b/tests/Symfony/Tests/Component/ClassLoader/ApcUniversalClassLoaderTest.php
index c8b6856e9fa9..37b231a5cb30 100644
--- a/tests/Symfony/Tests/Component/ClassLoader/ApcUniversalClassLoaderTest.php
+++ b/tests/Symfony/Tests/Component/ClassLoader/ApcUniversalClassLoaderTest.php
@@ -73,8 +73,8 @@ public function testLoadClassFromFallback($className, $testClassName, $message)
        $loader = new ApcUniversalClassLoader('test.prefix.fallback');
        $loader->registerNamespace('Apc\Namespaced', __DIR__.DIRECTORY_SEPARATOR.'Fixtures');
        $loader->registerPrefix('Apc_Pearlike_', __DIR__.DIRECTORY_SEPARATOR.'Fixtures');
-       $loader->registerNamespaceFallback(__DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/fallback');
-       $loader->registerPrefixFallback(__DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/fallback');
+       $loader->registerNamespaceFallbacks(array(__DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/fallback'));
+       $loader->registerPrefixFallbacks(array(__DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/fallback'));
        $loader->loadClass($testClassName);
        $this->assertTrue(class_exists($className), $message);
    }