diff --git a/crc/services/workflow_service.py b/crc/services/workflow_service.py
index af551ddb..9554e0e0 100755
--- a/crc/services/workflow_service.py
+++ b/crc/services/workflow_service.py
@@ -1,3 +1,4 @@
+import copy
 import string
 from datetime import datetime
 import random