diff --git a/addons/hr_contract/hr_contract.py b/addons/hr_contract/hr_contract.py
index 4d701341a72..b90f9dd1a89 100644
--- a/addons/hr_contract/hr_contract.py
+++ b/addons/hr_contract/hr_contract.py
@@ -80,20 +80,20 @@ class hr_contract(osv.osv):
     _name = 'hr.contract'
     _description = 'Contract'
     _columns = {
-        'name' : fields.char('Contract Reference', size=30, required=True),
-        'employee_id' : fields.many2one('hr.employee', "Employee", required=True),
-        'department_id' : fields.related('employee_id','department_id', string="Department", readonly=True),
-        'type_id' : fields.many2one('hr.contract.type', "Contract Type"),
-        'job_id' : fields.many2one('hr.job', 'Job Title'),
-        'date_start' : fields.date('Start Date', required=True),
-        'date_end' : fields.date('End Date'),
-        'working_hours_per_day_id' : fields.many2one('resource.calendar','Working hours per day'),
-        'wage_type_id' : fields.many2one('hr.contract.wage.type', 'Wage Type', required=True),
-        'wage' : fields.float('Wage', digits=(16,2), required=True),
+        'name': fields.char('Contract Reference', size=30, required=True),
+        'employee_id': fields.many2one('hr.employee', "Employee", required=True),
+        'department_id': fields.related('employee_id','department_id', string="Department", readonly=True),
+        'type_id': fields.many2one('hr.contract.type', "Contract Type"),
+        'job_id': fields.many2one('hr.job', 'Job Title'),
+        'date_start': fields.date('Start Date', required=True),
+        'date_end': fields.date('End Date'),
+        'working_hours': fields.many2one('resource.calendar','Working hours'),
+        'wage_type_id': fields.many2one('hr.contract.wage.type', 'Wage Type', required=True),
+        'wage': fields.float('Wage', digits=(16,2), required=True),
         'advantages': fields.text('Advantages'),
         'advantages_net': fields.float('Net Advantages Value', digits=(16,2)),
         'advantages_gross': fields.float('Gross Advantages Value', digits=(16,2)),
-        'notes' : fields.text('Notes'),
+        'notes': fields.text('Notes'),
     }
     _defaults = {
         'date_start' : lambda *a : time.strftime("%Y-%m-%d"),
diff --git a/addons/hr_contract/hr_contract_view.xml b/addons/hr_contract/hr_contract_view.xml
index 13e61c21ac4..e198cc35de5 100644
--- a/addons/hr_contract/hr_contract_view.xml
+++ b/addons/hr_contract/hr_contract_view.xml
@@ -57,9 +57,9 @@
             <field name="res_model">hr.contract.wage.type.period</field>
             <field name="view_type">form</field>
         </record>
-        <menuitem 
-                action="action_hr_contract_wage_type_period" 
-                id="hr_menu_contract_wage_type_period" 
+        <menuitem
+                action="action_hr_contract_wage_type_period"
+                id="hr_menu_contract_wage_type_period"
                 parent="hr_contract.next_id_56"/>
 
 
@@ -76,7 +76,7 @@
                                 <field name="job_id"/>
                                 <field name="date_start"/>
                                 <field name="date_end"/>
-                                <field name="working_hours_per_day_id"/>
+                                <field name="working_hours"/>
                                 <field name="wage_type_id"/>
                                 <field name="wage"/>
                             </tree>
@@ -95,7 +95,7 @@
                                         <separator colspan="2" string="Duration"/>
                                         <field name="date_start" select="1"/>
                                         <field name="date_end" select="1"/>
-                                        <field name="working_hours_per_day_id"/>
+                                        <field name="working_hours"/>
                                     </group>
                                     <group col="2" colspan="2">
                                         <separator colspan="2" string="Advantages"/>
@@ -165,7 +165,7 @@
                             <separator colspan="2" string="Duration"/>
                             <field name="date_start" select="1"/>
                             <field name="date_end" select="1"/>
-                            <field name="working_hours_per_day_id"/>
+                            <field name="working_hours"/>
                         </group>
                         <group col="2" colspan="2">
                             <separator colspan="2" string="Advantages"/>
@@ -204,7 +204,7 @@
                     <field name="department_id"/>
                     <field name="date_start"/>
                     <field name="date_end"/>
-                    <field name="working_hours_per_day_id"/>
+                    <field name="working_hours"/>
                     <field name="wage_type_id"/>
                     <field name="wage"/>
                 </tree>