diff --git a/addons/hr_expense/hr_expense.py b/addons/hr_expense/hr_expense.py
index c422a2d4948..73daa64f841 100644
--- a/addons/hr_expense/hr_expense.py
+++ b/addons/hr_expense/hr_expense.py
@@ -52,6 +52,9 @@ class hr_expense_expense(osv.osv):
             res[expense.id] = total
         return res
 
+    def _get_expense_from_line(self, cr, uid, ids, context=None):
+        return [line.expense_id.id for line in self.pool.get('hr.expense.line').browse(cr, uid, ids, context=context)]
+
     def _get_currency(self, cr, uid, context=None):
         user = self.pool.get('res.users').browse(cr, uid, [uid], context=context)[0]
         if user.company_id:
@@ -84,7 +87,10 @@ class hr_expense_expense(osv.osv):
         'account_move_id': fields.many2one('account.move', 'Ledger Posting'),
         'line_ids': fields.one2many('hr.expense.line', 'expense_id', 'Expense Lines', readonly=True, states={'draft':[('readonly',False)]} ),
         'note': fields.text('Note'),
-        'amount': fields.function(_amount, string='Total Amount', digits_compute=dp.get_precision('Account')),
+        'amount': fields.function(_amount, string='Total Amount', digits_compute=dp.get_precision('Account'), 
+            store={
+                'hr.expense.line': (_get_expense_from_line, ['unit_amount','unit_quantity'], 10)
+            }),
         'currency_id': fields.many2one('res.currency', 'Currency', required=True, readonly=True, states={'draft':[('readonly',False)], 'confirm':[('readonly',False)]}),
         'department_id':fields.many2one('hr.department','Department', readonly=True, states={'draft':[('readonly',False)], 'confirm':[('readonly',False)]}),
         'company_id': fields.many2one('res.company', 'Company', required=True),
diff --git a/addons/hr_expense/hr_expense_view.xml b/addons/hr_expense/hr_expense_view.xml
index eab24b06717..7a98053a6e5 100644
--- a/addons/hr_expense/hr_expense_view.xml
+++ b/addons/hr_expense/hr_expense_view.xml
@@ -32,7 +32,7 @@
                     <field name="user_id" invisible="1"/>
                     <field name="name"/>
                     <field name="currency_id" groups="base.group_multi_currency"/>
-                    <field name="amount"/>
+                    <field name="amount" sum="Total Expenses"/>
                     <field name="state"/>
                 </tree>
             </field>