diff --git a/src/caosadvancedtools/datamodel_problems.py b/src/caosadvancedtools/datamodel_problems.py
index 07fef07b99ebf1fa206cfbdc83863d8b73dda516..d14a384bdd0f16aed82d359346a331aa17334465 100644
--- a/src/caosadvancedtools/datamodel_problems.py
+++ b/src/caosadvancedtools/datamodel_problems.py
@@ -28,9 +28,9 @@ or updating entities with missing parents and/or properties.
 
 """
 from linkahead.exceptions import (EntityDoesNotExistError,
-                               TransactionError,
-                               UnqualifiedParentsError,
-                               UnqualifiedPropertiesError)
+                                  TransactionError,
+                                  UnqualifiedParentsError,
+                                  UnqualifiedPropertiesError)
 
 
 class DataModelProblems(object):