Index: trunk/data/validator/wikipedia.mapcss
===================================================================
--- trunk/data/validator/wikipedia.mapcss	(revision 15044)
+++ trunk/data/validator/wikipedia.mapcss	(revision 15060)
@@ -48,5 +48,5 @@
 
 *[wikipedia =~ /(?i)^[-a-z]{2,12}:.*%[0-9A-F][0-9A-F]/] {
-  throwError: tr("{0} tag should not have URL-encoded values like ''%27''", "{0.tag}");
+  throwError: tr("{0} tag should not have URL-encoded values like ''%27''", "{0.key}");
   fixAdd: concat("wikipedia=", get(regexp_match("(?i)^([-a-z]+:)(.*)$", tag("wikipedia")),1), trim(replace(URL_decode(get(regexp_match("(?i)^([-a-z]+:)(.+)$", tag("wikipedia")),2)), "_", " ")));
   assertMatch: "node wikipedia=en:Foo%27s";