diff --git a/addons/account_analytic_analysis/account_analytic_analysis.py b/addons/account_analytic_analysis/account_analytic_analysis.py
index 723752db384..0aa4ad4533f 100644
--- a/addons/account_analytic_analysis/account_analytic_analysis.py
+++ b/addons/account_analytic_analysis/account_analytic_analysis.py
@@ -531,6 +531,9 @@ class account_analytic_account(osv.osv):
 
         return True
 
+    def onchange_invoice_on_timesheets(self, cr, uid, ids, invoice_on_timesheets, context=None):
+        return {'value': {'use_timesheets': invoice_on_timesheets}}
+
 class account_analytic_account_summary_user(osv.osv):
     _name = "account_analytic_analysis.summary.user"
     _description = "Hours Summary by User"
diff --git a/addons/account_analytic_analysis/account_analytic_analysis_view.xml b/addons/account_analytic_analysis/account_analytic_analysis_view.xml
index b8221aac359..9f029f84ec3 100644
--- a/addons/account_analytic_analysis/account_analytic_analysis_view.xml
+++ b/addons/account_analytic_analysis/account_analytic_analysis_view.xml
@@ -78,7 +78,7 @@
                             <td class="oe_timesheet_grey">
                                 <label for="invoice_on_timesheets"/>
                             </td><td class="oe_timesheet_grey">
-                                <field name="invoice_on_timesheets"/>
+                                <field name="invoice_on_timesheets" on_change="onchange_invoice_on_timesheets(invoice_on_timesheets)"/>
                             </td><td>
                                 <field class="oe_inline" name="hours_qtt_est" attrs="{'invisible': [('invoice_on_timesheets','=',False)]}"/>
                             </td><td>