Index: /applications/editors/josm/plugins/wikipedia/src/org/wikipedia/gui/WikipediaToggleDialog.java
===================================================================
--- /applications/editors/josm/plugins/wikipedia/src/org/wikipedia/gui/WikipediaToggleDialog.java	(revision 33695)
+++ /applications/editors/josm/plugins/wikipedia/src/org/wikipedia/gui/WikipediaToggleDialog.java	(revision 33696)
@@ -319,5 +319,5 @@
             }
             final Collection<OsmPrimitive> selected = MainApplication.getLayerManager().getEditDataSet().getSelected();
-            if (!GuiUtils.confirmOverwrite(tag.getKey(), tag.getValue(), selected)) {
+            if (selected.isEmpty() || !GuiUtils.confirmOverwrite(tag.getKey(), tag.getValue(), selected)) {
                 return;
             }