diff --git a/openpype/pipeline/lib/attribute_definitions.py b/openpype/pipeline/lib/attribute_definitions.py
index 86949f8bf0..abab89e873 100644
--- a/openpype/pipeline/lib/attribute_definitions.py
+++ b/openpype/pipeline/lib/attribute_definitions.py
@@ -1,3 +1,5 @@
+import re
+import collections
 from abc import ABCMeta, abstractmethod
 import six