Index: applications/editors/josm/plugins/roadsigns/src/org/openstreetmap/josm/plugins/roadsigns/RoadSignInputDialog.java
===================================================================
--- applications/editors/josm/plugins/roadsigns/src/org/openstreetmap/josm/plugins/roadsigns/RoadSignInputDialog.java	(revision 22420)
+++ applications/editors/josm/plugins/roadsigns/src/org/openstreetmap/josm/plugins/roadsigns/RoadSignInputDialog.java	(revision 22423)
@@ -717,5 +717,5 @@
 
             if (sign.wiki != null || sign.loc_wiki != null) {
-                String wikiPrefix = "http://wiki.openstreetmap.org/wiki/";
+                String wikiPrefix = Main.main.pref.get("plugin.roadsigns.wikiprefix", "http://wiki.openstreetmap.org/wiki/");
                 txt.append("<p>");
                 if (sign.loc_wiki != null) {