diff --git a/sale_margin_no_onchange/__openerp__.py b/sale_margin_no_onchange/__openerp__.py
index 7393efb..5dcf1bc 100644
--- a/sale_margin_no_onchange/__openerp__.py
+++ b/sale_margin_no_onchange/__openerp__.py
@@ -39,5 +39,5 @@ This module has been written by Alexis de Lattre from Akretion
     'data': [
         'sale_view.xml',
     ],
-    'installable': True,
+    'installable': False,
 }