diff --git a/addons/account/account_demo.xml b/addons/account/account_demo.xml
index 487819effe8..5e877427091 100644
--- a/addons/account/account_demo.xml
+++ b/addons/account/account_demo.xml
@@ -21,7 +21,6 @@
         <record id="period_1" model="account.period">
             <field eval="'01/'+time.strftime('%Y')" name="code"/>
             <field eval="'01/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-01-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-01-31'" name="date_stop"/>
@@ -30,7 +29,6 @@
         <record id="period_2" model="account.period">
             <field eval="'02/'+time.strftime('%Y')" name="code"/>
             <field eval="'02/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-02-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-02-28'" name="date_stop"/>
@@ -39,7 +37,6 @@
         <record id="period_3" model="account.period">
             <field eval="'03/'+time.strftime('%Y')" name="code"/>
             <field eval="'03/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-03-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-03-31'" name="date_stop"/>
@@ -48,7 +45,6 @@
         <record id="period_4" model="account.period">
             <field eval="'04/'+time.strftime('%Y')" name="code"/>
             <field eval="'04/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-04-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-04-30'" name="date_stop"/>
@@ -57,7 +53,6 @@
         <record id="period_5" model="account.period">
             <field eval="'05/'+time.strftime('%Y')" name="code"/>
             <field eval="'05/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-05-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-05-31'" name="date_stop"/>
@@ -67,7 +62,6 @@
             <field eval="'06/'+time.strftime('%Y')" name="code"/>
             <field eval="'06/'+time.strftime('%Y')" name="name"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
-            <field name="special"/>
             <field eval="time.strftime('%Y')+'-06-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-06-30'" name="date_stop"/>
             <field name="company_id" ref="base.main_company"/>
@@ -75,7 +69,6 @@
         <record id="period_7" model="account.period">
             <field eval="'07/'+time.strftime('%Y')" name="code"/>
             <field eval="'07/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-07-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-07-31'" name="date_stop"/>
@@ -84,7 +77,6 @@
         <record id="period_8" model="account.period">
             <field eval="'08/'+time.strftime('%Y')" name="code"/>
             <field eval="'08/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-08-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-08-31'" name="date_stop"/>
@@ -93,7 +85,6 @@
         <record id="period_9" model="account.period">
             <field eval="'09/'+time.strftime('%Y')" name="code"/>
             <field eval="'09/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-09-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-09-30'" name="date_stop"/>
@@ -102,7 +93,6 @@
         <record id="period_10" model="account.period">
             <field eval="'10/'+time.strftime('%Y')" name="code"/>
             <field eval="'10/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-10-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-10-31'" name="date_stop"/>
@@ -111,7 +101,6 @@
         <record id="period_11" model="account.period">
             <field eval="'11/'+time.strftime('%Y')" name="code"/>
             <field eval="'11/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-11-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-11-30'" name="date_stop"/>
@@ -120,7 +109,6 @@
         <record id="period_12" model="account.period">
             <field eval="'12/'+time.strftime('%Y')" name="code"/>
             <field eval="'12/'+time.strftime('%Y')" name="name"/>
-            <field name="special"/>
             <field name="fiscalyear_id" ref="data_fiscalyear"/>
             <field eval="time.strftime('%Y')+'-12-01'" name="date_start"/>
             <field eval="time.strftime('%Y')+'-12-31'" name="date_stop"/>