Index: trunk/data/validator/highway.mapcss
===================================================================
--- trunk/data/validator/highway.mapcss	(revision 13470)
+++ trunk/data/validator/highway.mapcss	(revision 13471)
@@ -53,5 +53,5 @@
 }
 
-way.major_road[!ref][!destination:ref][noref!=yes] {
+way.major_road[!ref][!destination:ref][noref!=yes][junction!=roundabout] {
   throwOther: tr("highway without a reference");
   group: tr("missing tag");