diff --git a/addons/purchase/views/purchase_views.xml b/addons/purchase/views/purchase_views.xml
index 297d7b29f04..0daa603a033 100644
--- a/addons/purchase/views/purchase_views.xml
+++ b/addons/purchase/views/purchase_views.xml
@@ -224,7 +224,7 @@
                                     <field name="qty_invoiced" invisible="not context.get('show_purchase', True)"/>
                                     <field name="product_uom" groups="product.group_uom" attrs="{'readonly': [('state', 'in', ('purchase', 'done', 'cancel'))]}"/>
                                     <field name="price_unit"/>
-                                    <field name="taxes_id" widget="many2many_tags" domain="[('type_tax_use','=','purchase')]" context="{'default_type_tax_use': 'purchase'}" options="{'no_create': True', 'color_field': 'color'}"/>
+                                    <field name="taxes_id" widget="many2many_tags" domain="[('type_tax_use','=','purchase')]" context="{'default_type_tax_use': 'purchase'}" options="{'no_create': True, 'color_field': 'color'}"/>
                                     <field name="price_subtotal" widget="monetary"/>
                                 </tree>
                                 <form string="Purchase Order Line">