diff --git a/phpgwapi/templates/idots/css/idots.css b/phpgwapi/templates/idots/css/idots.css
index 6d545abf1d..44459c5d42 100644
--- a/phpgwapi/templates/idots/css/idots.css
+++ b/phpgwapi/templates/idots/css/idots.css
@@ -1,4 +1,4 @@
-@import url("traditional.css");
+@import url("traditional.css?11.1");
 
 /**
  * Stylite theme changes