Index: generic/nsf.c
===================================================================
diff -u -r416e73c14f19c308cd7cf9f8769a72d0244f665b -r156a002c09a06c6602f12d6f2f73038fa100b66e
--- generic/nsf.c	(.../nsf.c)	(revision 416e73c14f19c308cd7cf9f8769a72d0244f665b)
+++ generic/nsf.c	(.../nsf.c)	(revision 156a002c09a06c6602f12d6f2f73038fa100b66e)
@@ -18417,7 +18417,7 @@
 static void
 AppendForwardDefinition(Tcl_Interp *interp, Tcl_Obj *listObj, ForwardCmdClientData *tcd) {
   if (tcd->prefix) {
-    Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("-methodprefix", -1));
+    Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("-prefix", -1));
     Tcl_ListObjAppendElement(interp, listObj, tcd->prefix);
   }
   if (tcd->subcommands) {