diff --git a/rma/wizard/rma_lines_views.xml b/rma/wizard/rma_lines_views.xml
index 9515fd03..934c8f71 100644
--- a/rma/wizard/rma_lines_views.xml
+++ b/rma/wizard/rma_lines_views.xml
@@ -7,7 +7,7 @@
         <field name="arch" type="xml">
             <form>
                 <field name="line_ids">
-                    <tree editable="top">
+                    <tree editable="top" create="false" delete="false">
                         <field name="product_id" readonly="1"/>
                         <field name="qty_ordered" readonly="1"/>
                         <field name="qty_delivered" readonly="1"/>