diff --git a/sys/netgraph/ng_tee.c b/sys/netgraph/ng_tee.c
index 1eb1ce20f6be..fbce9b87f46a 100644
--- a/sys/netgraph/ng_tee.c
+++ b/sys/netgraph/ng_tee.c
@@ -329,7 +329,7 @@ ngt_rcvdata(hook_p hook, item_p item)
 	}
 
 	/* Duplicate packet and meta info if requried */
-	if (dup != NULL) {
+	if (dup && dup->hook) {
 		struct mbuf *m2;
 		meta_p meta2;