diff --git a/account_payment_order/views/ir_attachment.xml b/account_payment_order/views/ir_attachment.xml
index d5e2806a5..a2c59a18e 100644
--- a/account_payment_order/views/ir_attachment.xml
+++ b/account_payment_order/views/ir_attachment.xml
@@ -13,7 +13,12 @@
                         <field name="name" />
                     </h1>
                     <group name="main">
-                        <field name="datas" filename="name" string="Generated File" />
+                        <field
+                            name="datas"
+                            filename="name"
+                            string="Generated File"
+                            readonly="1"
+                        />
                         <label for="create_uid" string="Created by" />
                         <div name="creation_div">
                             <field name="create_uid" readonly="1" class="oe_inline" />