diff --git a/sys/net/if_clone.c b/sys/net/if_clone.c
--- a/sys/net/if_clone.c
+++ b/sys/net/if_clone.c
@@ -535,11 +535,12 @@
 
 		ifc->create_nl = req2->create_nl_f;
 		ifc->modify_nl = req2->modify_nl_f;
-		ifc->dump_nl = req2->dump_nl_f;
+		if (req2->dump_nl_f != NULL)
+			ifc->dump_nl = req2->dump_nl_f;
+		else
+			ifc->dump_nl = ifc_dump_ifp_nl_default;
 	}
 
-	ifc->dump_nl = ifc_dump_ifp_nl_default;
-
 	if (if_clone_attach(ifc) != 0)
 		return (NULL);