diff --git a/kernel/audit.c b/kernel/audit.c
index 4dbb047..488f85f 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -925,7 +925,7 @@
 		if (err || (nlh->nlmsg_flags & NLM_F_ACK))
 			netlink_ack(skb, nlh, err);
 
-		nlh = nlmsg_next(nlh, len);
+		nlh = nlmsg_next(nlh, &len);
 	}
 }