diff --git a/CEP/Pipeline/recipes/sip/master/imager_awimager.py b/CEP/Pipeline/recipes/sip/master/imager_awimager.py
index 06b4a9a7afdd25e0613a0699834ee8a967a28003..b1b2365feab84ca29d7fe8b7628cab43ba5594af 100644
--- a/CEP/Pipeline/recipes/sip/master/imager_awimager.py
+++ b/CEP/Pipeline/recipes/sip/master/imager_awimager.py
@@ -5,6 +5,7 @@
 #                                                      swinbank@transientskp.org
 # ------------------------------------------------------------------------------
 import sys
+import os
 import copy
 import lofarpipe.support.lofaringredient as ingredient
 from lofarpipe.support.baserecipe import BaseRecipe