diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 015606b..efa725e 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -777,7 +777,7 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	if (sunaddr->sun_family != AF_UNIX)
 		goto out;
 
-	if (addr_len==sizeof(short)) {
+	if (addr_len==sizeof(sa_family_t)) {
 		err = unix_autobind(sock);
 		goto out;
 	}