diff --git a/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c b/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c
index c1839fb2dd8c..8986dab2a173 100644
--- a/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c
+++ b/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c
@@ -1169,7 +1169,7 @@ ipf_checkv6sum(fin)
 size_t
 mbufchainlen(m0)
 	struct mbuf *m0;
-	{
+{
 	size_t len;
 
 	if ((m0->m_flags & M_PKTHDR) != 0) {