diff --git a/addons/sale/views/sale_order_views.xml b/addons/sale/views/sale_order_views.xml
index c3d8178725c..df130c9a6e4 100644
--- a/addons/sale/views/sale_order_views.xml
+++ b/addons/sale/views/sale_order_views.xml
@@ -304,11 +304,11 @@
placeholder="Type to find a customer..." readonly="state in ['cancel', 'sale']"/>