Index: applications/editors/josm/plugins/openstreetbugs/src/org/openstreetmap/josm/plugins/osb/OsbPlugin.java
===================================================================
--- applications/editors/josm/plugins/openstreetbugs/src/org/openstreetmap/josm/plugins/osb/OsbPlugin.java	(revision 28607)
+++ applications/editors/josm/plugins/openstreetbugs/src/org/openstreetmap/josm/plugins/osb/OsbPlugin.java	(revision 28608)
@@ -88,4 +88,5 @@
             UploadAction.unregisterUploadHook(uploadHook);
             uploadHook = null;
+            dialog = null;
         }
     }