diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 02fc86d2348e2157d19cd4c16c4574ef86ac4d07..6835c1279df77328894ef9bc1396d786e7f29dec 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -134,7 +134,7 @@ struct netlink_callback {
 
 struct netlink_notify {
 	struct net *net;
-	int portid;
+	u32 portid;
 	int protocol;
 };