diff --git a/hackfest/mock_osm/__main__.py b/hackfest/mock_osm/__main__.py
index 669da2b5e6a1729f35d2958f2d7aa68c0413287d..4ed25eaedbf4eba1f04ea41c72a751ecd7d6380b 100644
--- a/hackfest/mock_osm/__main__.py
+++ b/hackfest/mock_osm/__main__.py
@@ -58,13 +58,11 @@ SERVICE_CONNECTION_POINTS = [
 class MockOSMShell(cmd.Cmd):
     intro = 'Welcome to the MockOSM shell.\nType help or ? to list commands.\n'
     prompt = '(mock-osm) '
-    file = None
 
     def __init__(self, *args, **kwargs) -> None:
         super().__init__(*args, **kwargs)
         self.mock_osm = MockOSM(WIM_URL, WIM_PORT_MAPPING, WIM_USERNAME, WIM_PASSWORD)
 
-    # ----- basic turtle commands -----
     def do_create(self, arg):
         'Create an ELINE (L2) service'
         service_uuid = self.mock_osm.create_connectivity_service(