diff --git a/config.yaml b/config.yaml
index f961bb6..fa65925 100644
--- a/config.yaml
+++ b/config.yaml
@@ -11,7 +11,6 @@ options:
     description: Public SSH key of PLUMgrid LCM which is running PG-Tools
   mgmt-interface:
     type: string
-    default: 'juju-br0'
     description: The interface connected to PLUMgrid Managment network.
   fabric-interfaces:
     default: 'MANAGEMENT'
diff --git a/hooks/pg_gw_utils.py b/hooks/pg_gw_utils.py
index 73ae795..ebd5899 100644
--- a/hooks/pg_gw_utils.py
+++ b/hooks/pg_gw_utils.py
@@ -222,7 +222,9 @@ def get_mgmt_interface():
     Returns the managment interface.
     '''
     mgmt_interface = config('mgmt-interface')
-    if interface_exists(mgmt_interface):
+    if not mgmt_interface:
+        return get_iface_from_addr(unit_get('private-address'))
+    elif interface_exists(mgmt_interface):
         return mgmt_interface
     else:
         log('Provided managment interface %s does not exist'