diff --git a/net/netfilter/nfnetlink_osf.c b/net/netfilter/nfnetlink_osf.c
index f9dba62c450f11a93cbda8aa7998c8f505b2da76..00db27dfd2ff72a9f6bf67354168711e40575fe0 100644
--- a/net/netfilter/nfnetlink_osf.c
+++ b/net/netfilter/nfnetlink_osf.c
@@ -271,7 +271,7 @@ const char *nf_osf_find(const struct sk_buff *skb,
 
 	tcp = nf_osf_hdr_ctx_init(&ctx, skb, ip, opts);
 	if (!tcp)
-		return false;
+		return NULL;
 
 	list_for_each_entry_rcu(kf, &nf_osf_fingers[ctx.df], finger_entry) {
 		f = &kf->finger;