diff --git a/addons/project/project.py b/addons/project/project.py
index 8578ac3cc62..298e6941a95 100644
--- a/addons/project/project.py
+++ b/addons/project/project.py
@@ -1037,8 +1037,11 @@ class task(osv.osv):
         for obj in self.browse(cr, uid, ids, context=context):
             if obj.user_id:
                 sub_ids.append(obj.user_id.id)
+            if obj.manager_id:
+                sub_ids.append(obj.manager_id.id)
         return self.pool.get('res.users').read(cr, uid, sub_ids, context=context)
 
+
     def create(self, cr, uid, vals, context=None):
         result = super(task, self).create(cr, uid, vals, context=context)
         self._store_history(cr, uid, [result], context=context)