Index: /trunk/src/org/openstreetmap/josm/gui/dialogs/properties/TagEditHelper.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/dialogs/properties/TagEditHelper.java	(revision 17060)
+++ /trunk/src/org/openstreetmap/josm/gui/dialogs/properties/TagEditHelper.java	(revision 17061)
@@ -410,5 +410,5 @@
                 tr("Overwrite key"),
                 tr("Replace"), tr("Cancel"))
-            .setButtonIcons("purge", "cancel")
+            .setButtonIcons("ok", "cancel")
             .setContent(action+'\n'+ tr("The new key is already used, overwrite values?"))
             .setCancelButton(2)