Index: generic/nsf.c
===================================================================
diff -u -r77f50f6c6304355d638d5bf6f172d404940447de -r827f6d934f60d5ea0c02ea68d9e4cb8fc8a2f7ad
--- generic/nsf.c	(.../nsf.c)	(revision 77f50f6c6304355d638d5bf6f172d404940447de)
+++ generic/nsf.c	(.../nsf.c)	(revision 827f6d934f60d5ea0c02ea68d9e4cb8fc8a2f7ad)
@@ -16283,7 +16283,7 @@
   int result, inputArg = 1;
 
   if (unlikely(!tcd || !tcd->object)) {
-    return NsfDispatchClientDataError(interp, tcd, "object", "forwarder");
+    return NsfDispatchClientDataError(interp, tcd, "object", objc > 0 ? ObjStr(objv[0]) : "forwarder");
   }
 
   /*