diff --git a/modules/purchase_trade/view/purchase_btb_form.xml b/modules/purchase_trade/view/purchase_btb_form.xml
index ee2ba23..02bf32d 100644
--- a/modules/purchase_trade/view/purchase_btb_form.xml
+++ b/modules/purchase_trade/view/purchase_btb_form.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<form col="6">
+<form col="8">
     <group col="4" colspan="4" id="hd" yfill="1">
         <label name="party"/>
         <field name="party"/>
@@ -24,7 +24,7 @@ this repository contains the full copyright notices and license terms. -->
     <group col="2" colspan="2" id="hd" yfill="1">
         <!-- <field name="viewer" widget="html_viewer" height="300" width="600"/> -->
     </group>
-    <notebook colspan="6">
+    <notebook colspan="4">
         <page string="Purchase" id="purchase">
             <field name="lines" colspan="4"
                 view_ids="purchase.purchase_line_view_tree_sequence"/>
@@ -65,5 +65,5 @@ this repository contains the full copyright notices and license terms. -->
         <button name="process"/>
         <button name="manual_invoice" icon="tryton-forward"/>
     </group> -->
-    <field name="party_lang" invisible="1" colspan="6"/>
+    <field name="party_lang" invisible="1" colspan="4"/>
 </form>
diff --git a/modules/purchase_trade/view/sale_btb_form.xml b/modules/purchase_trade/view/sale_btb_form.xml
index 5f48876..bb3f1a8 100644
--- a/modules/purchase_trade/view/sale_btb_form.xml
+++ b/modules/purchase_trade/view/sale_btb_form.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<form col="6">
+<form col="4">
     <group col="4" colspan="4" id="hd" yfill="1">
         <label name="party"/>
         <field name="party"/>
@@ -26,7 +26,7 @@ this repository contains the full copyright notices and license terms. -->
     <group col="2" colspan="2" id="hd" yfill="1">
         <!-- <field name="viewer" widget="html_viewer" height="300" width="600"/> -->
     </group>
-    <notebook colspan="6">
+    <notebook colspan="4">
         <page string="Sale" id="sale">
             <field name="lines" colspan="4"
                 view_ids="sale.sale_line_view_tree_sequence"/>
@@ -69,5 +69,5 @@ this repository contains the full copyright notices and license terms. -->
         <button name="manual_invoice" icon="tryton-forward"/>
         <button name="manual_shipment" icon="tryton-forward"/>
     </group> -->
-    <field name="party_lang" invisible="1" colspan="6"/>
+    <field name="party_lang" invisible="1" colspan="4"/>
 </form>