--- a/server/test/data-migractions/schema.py	Mon Oct 19 14:28:30 2015 +0200
+++ b/server/test/data-migractions/schema.py	Mon Oct 19 14:29:53 2015 +0200
@@ -24,6 +24,8 @@
                              RQLConstraint, RQLUniqueConstraint,
                              RQLVocabularyConstraint,
                              ERQLExpression, RRQLExpression)
+from cubicweb import _
+
 
 class Affaire(WorkflowableEntityType):
     __permissions__ = {