Index: generic/nsf.c
===================================================================
diff -u -rd29a51c38be834fe558f1c85069d8bc500d201d9 -r572e1a32edadd7868800deb34e8433c034173835
--- generic/nsf.c	(.../nsf.c)	(revision d29a51c38be834fe558f1c85069d8bc500d201d9)
+++ generic/nsf.c	(.../nsf.c)	(revision 572e1a32edadd7868800deb34e8433c034173835)
@@ -16691,7 +16691,8 @@
 
   if (unlikely(tcd->verbose)) {
     Tcl_Obj *cmd = Tcl_NewListObj(objc, objv);
-    fprintf(stderr, "forwarder calls '%s'\n", ObjStr(cmd));
+
+    NsfLog(interp, NSF_LOG_NOTICE, "forwarder calls '%s'",  ObjStr(cmd));
     DECR_REF_COUNT(cmd);
   }
   if (tcd->objframe) {