diff --git a/src/vnet/devices/tap/tap.c b/src/vnet/devices/tap/tap.c
index eb5a7a9..8005b34 100644
--- a/src/vnet/devices/tap/tap.c
+++ b/src/vnet/devices/tap/tap.c
@@ -130,8 +130,6 @@
   vif->tap_fd = -1;
   vif->id = args->id;
 
-  hash_set (tm->dev_instance_by_interface_id, vif->id, vif->dev_instance);
-
   if ((vif->fd = open ("/dev/vhost-net", O_RDWR | O_NONBLOCK)) < 0)
     {
       args->rv = VNET_API_ERROR_SYSCALL_ERROR_1;
@@ -383,6 +381,8 @@
       goto error;
     }
 
+  hash_set (tm->dev_instance_by_interface_id, vif->id, vif->dev_instance);
+
   sw = vnet_get_hw_sw_interface (vnm, vif->hw_if_index);
   vif->sw_if_index = sw->sw_if_index;
   args->sw_if_index = vif->sw_if_index;
diff --git a/src/vnet/devices/tap/tapv2_api.c b/src/vnet/devices/tap/tapv2_api.c
index 34472c0..c6da0c9 100644
--- a/src/vnet/devices/tap/tapv2_api.c
+++ b/src/vnet/devices/tap/tapv2_api.c
@@ -59,7 +59,7 @@
 
   memset (ap, 0, sizeof (*ap));
 
-  ap->id = mp->id;
+  ap->id = ntohl (mp->id);
   if (!mp->use_random_mac)
     {
       clib_memcpy (ap->mac_addr, mp->mac_address, 6);