diff --git a/accel-pppd/libnetlink/iputils.c b/accel-pppd/libnetlink/iputils.c
index 23325fcd..4bf7fd01 100644
--- a/accel-pppd/libnetlink/iputils.c
+++ b/accel-pppd/libnetlink/iputils.c
@@ -213,7 +213,8 @@ int __export iplink_vlan_add(const char *ifname, int ifindex, int vid)
 
 	data = NLMSG_TAIL(&req.n);
 	addattr_l(&req.n, 4096, IFLA_INFO_DATA, NULL, 0);
-	addattr_l(&req.n, 4096, IFLA_VLAN_ID, &vid, 2);
+	uint16_t vid_16b = (uint16_t)vid;
+	addattr_l(&req.n, 4096, IFLA_VLAN_ID, &vid_16b, 2);
 	data->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)data;
 
 	linkinfo->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)linkinfo;