Index: generic/nsf.c
===================================================================
diff -u -r11911b4cef79513ac212b56be4270d1fb7a78ad6 -r138d0f863712bcafd8732a3a40cef60cc80e8737
--- generic/nsf.c	(.../nsf.c)	(revision 11911b4cef79513ac212b56be4270d1fb7a78ad6)
+++ generic/nsf.c	(.../nsf.c)	(revision 138d0f863712bcafd8732a3a40cef60cc80e8737)
@@ -6452,7 +6452,10 @@
        * The client data cp is still the obj of the called method
        */
       if (objc < 2) {
+	Tcl_CallFrame frame, *framePtr = &frame;
+	Nsf_PushFrameCsc(interp, cscPtr, framePtr);
 	result = DispatchDefaultMethod(cp, interp, objc, objv, NSF_CSC_IMMEDIATE);
+	Nsf_PopFrameCsc(interp, framePtr);
       } else {
 	Tcl_CallFrame frame, *framePtr = &frame;
 	NsfObject *self = (NsfObject *)cp;