Index: generic/nsf.c
===================================================================
diff -u -r15a93252f0d9d8961ded6fd8f9b610a535ddbdb5 -rce6d76dc0353274665973facb2546678bc7ebd92
--- generic/nsf.c	(.../nsf.c)	(revision 15a93252f0d9d8961ded6fd8f9b610a535ddbdb5)
+++ generic/nsf.c	(.../nsf.c)	(revision ce6d76dc0353274665973facb2546678bc7ebd92)
@@ -19517,7 +19517,10 @@
   assert(interp);
   assert(objv);
 
-  if (objc > 2) return NsfObjWrongArgs(interp, "wrong # args", object->cmdName, objv[0], "?value?");
+  if (objc > 2) {
+    return NsfObjWrongArgs(interp, "wrong # args", object->cmdName, 
+                           NsfMethodNamePath(interp, NULL /* use topmost frame */, NsfMethodName(objv[0])), "?value?");
+  }
   if (object == NULL) return NsfDispatchClientDataError(interp, clientData, "object", ObjStr(objv[0]));
 
   if (cd->paramsPtr && objc == 2) {