diff --git a/hooks/pg_dir_utils.py b/hooks/pg_dir_utils.py
index c97beeb..bae0c13 100644
--- a/hooks/pg_dir_utils.py
+++ b/hooks/pg_dir_utils.py
@@ -222,7 +222,7 @@ def get_mgmt_interface():
     Returns the managment interface.
     '''
     mgmt_interface = config('mgmt-interface')
-    if interface_exists(mgmt_interface):
+    if mgmt_interface and interface_exists(mgmt_interface):
         return mgmt_interface
     else:
         log('Provided managment interface %s does not exist'