diff --git a/addons/hr_timesheet_sheet/hr_timesheet_sheet.py b/addons/hr_timesheet_sheet/hr_timesheet_sheet.py
index cd58f52f959..76c6ac7ca35 100644
--- a/addons/hr_timesheet_sheet/hr_timesheet_sheet.py
+++ b/addons/hr_timesheet_sheet/hr_timesheet_sheet.py
@@ -468,7 +468,7 @@ class hr_timesheet_line(osv.osv):
         for ts_line in self.browse(cursor, user, ids, context=context):
             sheet_ids = sheet_obj.search(cursor, user,
                 [('date_to', '>=', ts_line.date), ('date_from', '<=', ts_line.date),
-                 ('employee_id.user_id', '=', ts_line.user_id.id)],
+                 ('employee_id.user_id', '=', ts_line.sheet_id and ts_line.sheet_id.employee_id.user_id.id)],
                 context=context)
             if sheet_ids:
             # [0] because only one sheet possible for an employee between 2 dates