diff --git a/src/Symfony/Component/HttpKernel/Util/Filesystem.php b/src/Symfony/Component/HttpKernel/Util/Filesystem.php
index 6e43ae82b510b..88fc7b85612d2 100644
--- a/src/Symfony/Component/HttpKernel/Util/Filesystem.php
+++ b/src/Symfony/Component/HttpKernel/Util/Filesystem.php
@@ -133,7 +133,7 @@ public function rename($origin, $target)
     {
         // we check that target does not exist
         if (is_readable($target)) {
-            throw new \RuntimeException(sprintf('Cannot rename because the target "%" already exist.', $target));
+            throw new \RuntimeException(sprintf('Cannot rename because the target "%s" already exist.', $target));
         }
 
         rename($origin, $target);