diff --git a/addons/hr_payroll/hr_payroll.py b/addons/hr_payroll/hr_payroll.py
index 5ba5dbac216..14b66c328d5 100644
--- a/addons/hr_payroll/hr_payroll.py
+++ b/addons/hr_payroll/hr_payroll.py
@@ -278,7 +278,7 @@ class hr_payslip(osv.osv):
         'note': fields.text('Description', readonly=True, states={'draft':[('readonly',False)]}),
         'contract_id': fields.many2one('hr.contract', 'Contract', required=False, readonly=True, states={'draft': [('readonly', False)]}),
         'details_by_salary_rule_category': fields.function(_get_lines_salary_rule_category, method=True, type='one2many', relation='hr.payslip.line', string='Details by Salary Rule Category'),
-        'credit_note': fields.boolean('Credit Note', help="Indicates this payslip has a refund of another"),
+        'credit_note': fields.boolean('Credit Note', help="Indicates this payslip has a refund of another", readonly=True, states={'draft': [('readonly', False)]}),
         'payslip_run_id': fields.many2one('hr.payslip.run', 'Payslip Run', readonly=True, states={'draft': [('readonly', False)]}),
     }
     _defaults = {
diff --git a/addons/hr_payroll/hr_payroll_view.xml b/addons/hr_payroll/hr_payroll_view.xml
index f8b74ba01ee..c260a46f503 100644
--- a/addons/hr_payroll/hr_payroll_view.xml
+++ b/addons/hr_payroll/hr_payroll_view.xml
@@ -551,7 +551,7 @@
                        <field name="category_id"/>
                        <field name="sequence" />
                        <field name="active"/>
-                       <field name="appears_on_payslip" attrs="{'readonly':[('company_contribution','=', True)]}" />
+                       <field name="appears_on_payslip"/>
                        <field name="company_id" widget="selection" groups="base.group_multi_company"/>
                     </group>
                     <notebook colspan="6">