Index: trunk/src/org/openstreetmap/josm/gui/preferences/AddWMSLayerPanel.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/preferences/AddWMSLayerPanel.java	(revision 4934)
+++ trunk/src/org/openstreetmap/josm/gui/preferences/AddWMSLayerPanel.java	(revision 4935)
@@ -282,5 +282,5 @@
         a.append("FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=");
         a.append(commaSepLayerList());
-        a.append("&SRS={proj}&WIDTH={width}&HEIGHT={height}&BBOX={bbox}");
+        a.append("&STYLES=&SRS={proj}&WIDTH={width}&HEIGHT={height}&BBOX={bbox}");
 
         return a.toString();