diff --git a/plips/plip12453-3rdparty-ecmascripts.cfg b/plips/plip12453-3rdparty-ecmascripts.cfg
index 8aaf8af882..849a076d40 100644
--- a/plips/plip12453-3rdparty-ecmascripts.cfg
+++ b/plips/plip12453-3rdparty-ecmascripts.cfg
@@ -3,10 +3,11 @@ extends=plipbase.cfg
 
 auto-checkout+=
     plone.app.jscalendar
-    plone.app.sarissa
-    plone.app.s5slideshow
-    plone.app.modernizr
+    plone.app.kss
     plone.app.layout
+    plone.app.modernizr
+    plone.app.s5slideshow
+    plone.app.sarissa
     plone.app.search
     Products.CMFPlone
     Products.kupu
@@ -28,6 +29,7 @@ plone.app.sarissa = git ${remotes:plone}/plone.app.sarissa.git
 plone.app.s5slideshow = git ${remotes:plone}/plone.app.s5slideshow.git
 plone.app.modernizr = git ${remotes:plone}/plone.app.modernizr.git
 #branch to merge
+plone.app.kss = git ${remotes:plone}/plone.app.kss.git branch=plip12453-packaging-3rdparty-ecmascripts
 plone.app.layout = git ${remotes:plone}/plone.app.layout.git branch=plip12453-packaging-3rdparty-ecmascripts
 plone.app.search = git ${remotes:plone}/plone.app.search.git branch=plip12453-packaging-3rdparty-ecmascripts
 Products.CMFPlone = git ${remotes:plone}/Products.CMFPlone.git branch=plip-12453-3rdparty-ecmascripts