diff --git a/core/src/main/resources/lib/layout/yui.jelly b/core/src/main/resources/lib/layout/yui.jelly
index eb108db9db..34007f003f 100644
--- a/core/src/main/resources/lib/layout/yui.jelly
+++ b/core/src/main/resources/lib/layout/yui.jelly
@@ -3,6 +3,7 @@
 
   Attributes:
     @module   module name to be loaded
+    @suffix   if loading beta module, use suffix='-beta'
 -->
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler">
   <script src="${resURL}/scripts/yui/${module}/${module}${attrs.suffix}-${yuiSuffix}.js" />