diff --git a/product/ERP5Type/tests/testDateUtils.py b/product/ERP5Type/tests/testDateUtils.py
index 6dfc7f9db66c6955efb3d64e208c9a99639ee4af..55a47d24f2ba51844235b312090abd125f93d662 100644
--- a/product/ERP5Type/tests/testDateUtils.py
+++ b/product/ERP5Type/tests/testDateUtils.py
@@ -49,6 +49,7 @@ Globals.get_request = get_request
 
 # Initialize ERP5Form Product to load monkey patches
 from Testing import ZopeTestCase
+ZopeTestCase.installProduct('CMFCategory')
 ZopeTestCase.installProduct('ERP5Type')