diff --git a/cbpi/extension/mashstep/__init__.py b/cbpi/extension/mashstep/__init__.py
index 2c62ce3..2feeabc 100644
--- a/cbpi/extension/mashstep/__init__.py
+++ b/cbpi/extension/mashstep/__init__.py
@@ -1,5 +1,4 @@
 import asyncio
-from pickle import NONE
 
 from cbpi.api import parameters, Property, action
 from cbpi.api.step import StepResult, CBPiStep