Index: /applications/editors/josm/plugins/splinex/src/org/openstreetmap/josm/plugins/Splinex/Spline.java
===================================================================
--- /applications/editors/josm/plugins/splinex/src/org/openstreetmap/josm/plugins/Splinex/Spline.java	(revision 34900)
+++ /applications/editors/josm/plugins/splinex/src/org/openstreetmap/josm/plugins/Splinex/Spline.java	(revision 34901)
@@ -275,7 +275,8 @@
             ca = a.add(sn.cnext);
         }
-        if (!cmds.isEmpty())
+        if (!cmds.isEmpty()) {
             cmds.add(new AddCommand(ds, w));
-        UndoRedoHandler.getInstance().add(new FinishSplineCommand(cmds));
+            UndoRedoHandler.getInstance().add(new FinishSplineCommand(cmds));
+        }
     }