diff --git a/addons/sale/wizard/sale_make_invoice.xml b/addons/sale/wizard/sale_make_invoice.xml
index 177ef8d029d..b3f121b8c40 100644
--- a/addons/sale/wizard/sale_make_invoice.xml
+++ b/addons/sale/wizard/sale_make_invoice.xml
@@ -1,24 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
 <openerp>
     <data>
-    	<record id="view_sale_order_make_invoice" model="ir.ui.view">
+        <record id="view_sale_order_make_invoice" model="ir.ui.view">
             <field name="name">Create invoices</field>
             <field name="model">sale.make.invoice</field>
             <field name="type">form</field>
             <field name="arch" type="xml">
-            <form string="Create invoices">
-            	<separator colspan="4" string="Do you really want to create the invoice(s) ?" />
-    			<field name="grouped"/>
-    			<newline/>
-    			<field name="invoice_date"/>
-    		   	<separator string="" colspan="6"/>
-              	<button special="cancel" string="Cancel" icon="gtk-cancel"/>
-               	<button name="make_invoices" string="Create Invoices" type="object" icon="gtk-ok"/>
-           		</form>
+                <form string="Create invoices">
+                    <separator colspan="4" string="Do you really want to create the invoice(s) ?" />
+                    <field name="grouped"/>
+                    <newline/>
+                    <field name="invoice_date"/>
+                    <separator string="" colspan="6"/>
+                    <button special="cancel" string="Cancel" icon="gtk-cancel"/>
+                    <button name="make_invoices" string="Create Invoices" type="object" icon="gtk-ok"/>
+               </form>
             </field>
-		</record>
+        </record>
 
-		<record id="action_sale_order_make_invoice" model="ir.actions.act_window">
+        <record id="action_sale_order_make_invoice" model="ir.actions.act_window">
             <field name="name">Make Invoices</field>
             <field name="type">ir.actions.act_window</field>
             <field name="res_model">sale.make.invoice</field>
@@ -27,13 +27,13 @@
             <field name="target">new</field>
         </record>
         
-        <act_window name="Make Invoices"		    
-		    res_model="sale.make.invoice"
-		    src_model="sale.order"
-		    view_mode="form"
-		    target="new"        
+        <act_window name="Make Invoices"            
+            res_model="sale.make.invoice"
+            src_model="sale.order"
+            view_mode="form"
+            target="new"        
             key2="client_action_multi"    
-		    id="action_view_sale_order_make_invoice"/>		
+            id="action_view_sale_order_make_invoice"/>        
 
     </data>
 </openerp>