diff --git a/version.php b/version.php
index 3bfac6b6442..1f72d0387fe 100644
--- a/version.php
+++ b/version.php
@@ -10,6 +10,6 @@
                            //         X  = release number 1.6.[0,1,2,3...]
                            //          Y = micro-increments between releases
 
-   $release = '1.6.6';   // Human-friendly version name
+   $release = '1.6.6+';   // Human-friendly version name
 
 ?>