diff --git a/views/sale_view.xml b/views/sale_view.xml
index 1f9bd7a6d750be93d3c17399d19b0b8ded709c7f..320c68e56ef66098059a77a8aef36e06dd8a6d17 100644
--- a/views/sale_view.xml
+++ b/views/sale_view.xml
@@ -12,7 +12,7 @@
 
             <field name="payment_term_id" position="after">
 
-                <field name="taux_horaire"/>
+                <field name="taux_horaire" attrs="{'readonly':[('state','!=','draft')]}"/>
 
                 <field name="project_ids" string="Projets associƩs" attrs="{'invisible':[('state','!=','sale')]}"/>