diff --git a/trytond/workflow/__tryton__.py b/trytond/workflow/__tryton__.py
index 3c6200918e..fb0b5e3680 100644
--- a/trytond/workflow/__tryton__.py
+++ b/trytond/workflow/__tryton__.py
@@ -1,6 +1,7 @@
 {
     'name': 'Workflow',
     'active': True,
+    'depends': ['ir'],
     'xml': [
         'workflow.xml',
         ],