diff --git a/Provider/Config.php b/Provider/Config.php
index 770fac84d3..94efa49390 100644
--- a/Provider/Config.php
+++ b/Provider/Config.php
@@ -146,7 +146,7 @@ public function collectConfigs()
             foreach ($bundles as $bundle) {
                 $reflection = new \ReflectionClass($bundle);
                 if (is_file($file = dirname($reflection->getFilename()) . '/Resources/config/requirejs.yml')) {
-                    $requirejs = Yaml::parse(realpath($file));
+                    $requirejs = Yaml::parse(file_get_contents(realpath($file)));
                     $config = self::arrayMergeRecursiveDistinct($config, $requirejs);
                 }
             }