diff --git a/tcp_tests/helpers/ext.py b/tcp_tests/helpers/ext.py
index 7abc53e..c623e79 100644
--- a/tcp_tests/helpers/ext.py
+++ b/tcp_tests/helpers/ext.py
@@ -30,6 +30,7 @@
     'decapod_mon',
     'decapod_osd',
     'decapod_all',
+    'none'
 )