Index: trunk/data/validator/relation.mapcss
===================================================================
--- trunk/data/validator/relation.mapcss	(revision 15766)
+++ trunk/data/validator/relation.mapcss	(revision 15771)
@@ -12,5 +12,5 @@
 relation[type=route_master][!route_master],
 relation[type=restriction][!/^restriction/], /* see #11586 */
-relation[type=boundary][!boundary],
+relation[type=boundary][!boundary][!disused:boundary],
 relation[type=public_transport][!public_transport],
 relation[type=waterway][!waterway],