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 32177)
+++ applications/editors/josm/plugins/roadsigns/src/org/openstreetmap/josm/plugins/roadsigns/RoadSignInputDialog.java	(revision 32507)
@@ -134,5 +134,5 @@
     protected void buttonAction(int i, ActionEvent evt) {
         if (i == 0) { // OK Button
-            Collection<OsmPrimitive> selPrim = Main.main.getCurrentDataSet().getSelected();
+            Collection<OsmPrimitive> selPrim = Main.getLayerManager().getEditDataSet().getSelected();
             if (!selPrim.isEmpty()) {
                 Main.pref.put("plugin.roadsigns.addTrafficSignTag", addTrafficSignTag.isSelected());