Index: /trunk/src/org/openstreetmap/josm/gui/mappaint/MapPaintStyles.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/mappaint/MapPaintStyles.java	(revision 17082)
+++ /trunk/src/org/openstreetmap/josm/gui/mappaint/MapPaintStyles.java	(revision 17083)
@@ -53,5 +53,6 @@
         MapPaintStylesPreferenceListener(IPreferences pref) {
             this.pref = pref;
-            this.preferenceIgnoreList = Arrays.asList("mappaint.style.entries", "mappaint.style.known-defaults");
+            this.preferenceIgnoreList = Arrays.asList("mappaint.style.entries", "mappaint.style.known-defaults",
+                    "mappaint.renderer-class-name");
         }