Index: trunk/data/validator/combinations.mapcss
===================================================================
--- trunk/data/validator/combinations.mapcss	(revision 8119)
+++ trunk/data/validator/combinations.mapcss	(revision 8120)
@@ -238,6 +238,6 @@
 }
 
-/* see #9593 */
-*[sport][!building][tourism != hotel][highway != raceway][leisure !~ /^(sports_centre|stadium|track|pitch|golf_course|water_park|swimming_pool|recreation_ground)$/][natural !~ /^(beach|bare_rock|peak)$/][amenity !~ /^(pub|restaurant|swimming_pool)$/][landuse !~ /^(recreation_ground|piste|farm|farmland)$/] {
+/* see #9593, #11183 */
+*[sport][!building][tourism != hotel][highway != raceway][leisure !~ /^(sports_centre|stadium|track|pitch|golf_course|water_park|swimming_pool|recreation_ground)$/][natural !~ /^(beach|bare_rock|peak)$/][amenity !~ /^(pub|restaurant|swimming_pool)$/][landuse !~ /^(recreation_ground|piste|farm|farmland)$/][barrier !~ /^(wall|retaining_wall)$/] {
     throwWarning: tr("sport without physical feature");
     assertMatch: "node sport=tennis";