diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 30e5ea3..07ec7d2 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -1184,6 +1184,8 @@
 {
 	int err;
 
+	BUILD_BUG_ON(sizeof(struct sockaddr_sco) > sizeof(struct sockaddr));
+
 	err = proto_register(&sco_proto, 0);
 	if (err < 0)
 		return err;