diff --git a/addons/crm/crm.py b/addons/crm/crm.py
index 3cd86c36d25..0dc516b38a9 100644
--- a/addons/crm/crm.py
+++ b/addons/crm/crm.py
@@ -493,7 +493,7 @@ class crm_case(osv.osv):
             'case_subject': case.name,
             'case_date': case.date,
 
-            'case_user': case.user_id.name or '/',
+            'case_user': (case.user_id and case.user_id.name) or '/',
             'case_user_email': (case.user_id and case.user_id.address_id and case.user_id.address_id.email) or '/',
             'case_user_phone': (case.user_id and case.user_id.address_id and case.user_id.address_id.phone) or '/',