diff --git a/includes/session.php b/includes/session.php
index a131154a834..3cd5e44fc77 100755
--- a/includes/session.php
+++ b/includes/session.php
@@ -30,7 +30,7 @@
 // Identify ourself
 define('WT_WEBTREES',        'webtrees');
 define('WT_VERSION',         '1.5.1');
-define('WT_VERSION_RELEASE', 'dev'); // “dev”, “beta”, “rc1”, “”, etc.
+define('WT_VERSION_RELEASE', ''); // “dev”, “beta”, “rc1”, “”, etc.
 define('WT_VERSION_TEXT',    trim(WT_VERSION.' '.WT_VERSION_RELEASE));
 
 // External URLs