diff --git a/addons/project_issue/project_issue.py b/addons/project_issue/project_issue.py
index 20a61657e20..efb4e4eff2b 100644
--- a/addons/project_issue/project_issue.py
+++ b/addons/project_issue/project_issue.py
@@ -306,7 +306,7 @@ class project_issue(base_stage, osv.osv):
         'progress': fields.function(_hours_get, string='Progress (%)', multi='hours', group_operator="avg", help="Computed as: Time Spent / Total Time.",
             store = {
                 'project.issue': (lambda self, cr, uid, ids, c={}: ids, ['task_id'], 10),
-                'project.task': (_get_issue_task, ['progress'], 10),
+                'project.task': (_get_issue_task, ['work_ids', 'remaining_hours', 'planned_hours', 'state', 'stage_id'], 10),
                 'project.task.work': (_get_issue_work, ['hours'], 10),
             }),
     }