diff --git a/lib/hypervisor/hv_kvm.py b/lib/hypervisor/hv_kvm.py
index bb1d465a9b600b4ab92edb5caced352912741c2c..218fcbb5de56c8107eec63af127cc7a7347fb6d6 100644
--- a/lib/hypervisor/hv_kvm.py
+++ b/lib/hypervisor/hv_kvm.py
@@ -1098,7 +1098,7 @@ class KVMHypervisor(hv_base.BaseHypervisor):
     if nic.nicparams[constants.NIC_LINK]:
       env["LINK"] = nic.nicparams[constants.NIC_LINK]
 
-    if nic.nicparams[constants.NIC_VLAN]:
+    if constants.NIC_VLAN in nic.nicparams:
       env["VLAN"] = nic.nicparams[constants.NIC_VLAN]
 
     if nic.network: