diff --git a/src/Symfony/Component/HttpFoundation/File/File.php b/src/Symfony/Component/HttpFoundation/File/File.php
index 729d870cfc..c8967b1bf7 100644
--- a/src/Symfony/Component/HttpFoundation/File/File.php
+++ b/src/Symfony/Component/HttpFoundation/File/File.php
@@ -129,7 +129,7 @@ class File extends \SplFileInfo
             throw new FileException(sprintf('Unable to write in the "%s" directory', $directory));
         }
 
-        $target = $directory.DIRECTORY_SEPARATOR.(null === $name ? $this->getBasename() : $this->getName($name));
+        $target = trim($directory, '/\\').DIRECTORY_SEPARATOR.(null === $name ? $this->getBasename() : $this->getName($name));
 
         return new File($target, false);
     }