Index: /trunk/data/validator/combinations.mapcss
===================================================================
--- /trunk/data/validator/combinations.mapcss	(revision 11429)
+++ /trunk/data/validator/combinations.mapcss	(revision 11430)
@@ -307,5 +307,5 @@
 *[bridge  ][!highway][!railway][!waterway][!piste:type][public_transport != platform][man_made !~ /^(bridge|pipeline)$/][building != bridge],
 *[psv     ][!highway][!railway][!waterway][amenity !~ /^parking.*/],
-*[width   ][!highway][!railway][!waterway][!aeroway][!cycleway][!footway][!barrier][!man_made][!entrance],
+*[width   ][!highway][!railway][!waterway][!aeroway][!cycleway][!footway][!barrier][!man_made][!entrance][natural!=stone],
 *[maxspeed][!highway][!railway][traffic_sign !~ /^((.*;)?maxspeed(;.*)?|[A-Z][A-Z]:.+)$/][type != enforcement][waterway !~ /^(river|canal|lock)$/][!traffic_calming] {
   throwWarning: tr("{0} on suspicious object", "{0.key}");