diff --git a/src/Symfony/Component/Filesystem/Filesystem.php b/src/Symfony/Component/Filesystem/Filesystem.php
index 522aacca64eb9..d2e0f29a329d6 100644
--- a/src/Symfony/Component/Filesystem/Filesystem.php
+++ b/src/Symfony/Component/Filesystem/Filesystem.php
@@ -528,6 +528,7 @@ public function dumpFile($filename, $content)
             throw new IOException(sprintf('Failed to write file "%s".', $filename), 0, null, $filename);
         }
 
+        $this->chmod($tmpFile, 0666);
         $this->rename($tmpFile, $filename, true);
     }