diff --git a/RO-SDN-juniper_contrail/osm_rosdn_juniper_contrail/sdn_assist_juniper_contrail.py b/RO-SDN-juniper_contrail/osm_rosdn_juniper_contrail/sdn_assist_juniper_contrail.py
index b3d3eb495d7188ddcabdd6968b08692a4103f673..2fcdb1d62c5ad7e89b3ccbf95913e9543fcf9de4 100644
--- a/RO-SDN-juniper_contrail/osm_rosdn_juniper_contrail/sdn_assist_juniper_contrail.py
+++ b/RO-SDN-juniper_contrail/osm_rosdn_juniper_contrail/sdn_assist_juniper_contrail.py
@@ -398,6 +398,8 @@ class JuniperContrail(SdnConnectorBase):
             if len(vlans) == 1:
                 vlan = vlans.pop()
                 self.logger.debug("Provided vlan: {}".format(vlan))
+                if not vlan:
+                    raise SdnConnectorError("No vlan provided")
             else:
                 raise SdnConnectorError("Provided more than one vlan")