diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index f65caf41953f866fdea55b8eb342fafc9dc8a1c7..20206cd3acbcab3feef0b858f380d163a5e23ee8 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1614,6 +1614,8 @@ int __init l2cap_init_sockets(void)
 {
 	int err;
 
+	BUILD_BUG_ON(sizeof(struct sockaddr_l2) > sizeof(struct sockaddr));
+
 	err = proto_register(&l2cap_proto, 0);
 	if (err < 0)
 		return err;