Index: trunk/src/org/openstreetmap/josm/actions/CombineWayAction.java
===================================================================
--- trunk/src/org/openstreetmap/josm/actions/CombineWayAction.java	(revision 6595)
+++ trunk/src/org/openstreetmap/josm/actions/CombineWayAction.java	(revision 6596)
@@ -66,4 +66,5 @@
         ed.setContent(tr("The ways can not be combined in their current directions.  "
                 + "Do you want to reverse some of them?"));
+        ed.toggleEnable("combineway-reverse");
         ed.showDialog();
         return ed.getValue() == 1;