diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index 83ccbe8f07..8f983c7a8d 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -64,7 +64,7 @@ abstract class Kernel implements KernelInterface, TerminableInterface
     const MAJOR_VERSION = '2';
     const MINOR_VERSION = '3';
     const RELEASE_VERSION = '22';
-    constEXTRA_VERSION   = '';
+    const EXTRA_VERSION   = '';
 
     /**
      * Constructor.