diff --git a/js/connection.js b/js/connection.js
index 8a1e230..77a7027 100644
--- a/js/connection.js
+++ b/js/connection.js
@@ -48,7 +48,7 @@ weechat.factory('connection',
                     // too high, this time should be reduced if determined the weechat
                     // is lower than 2.9
                     // This time also includes the time it takes to generate the hash
-                    const WAIT_TIME_OLD_WEECHAT = 200; //ms
+                    var WAIT_TIME_OLD_WEECHAT = 200; //ms
 
                     // Wait long enough to assume we are on a version < 2.9
                     var handShakeTimeout = setTimeout(function () {