diff --git a/invoicing_voucher_killer/__openerp__.py b/invoicing_voucher_killer/__openerp__.py
index bf84510ce..1f5779df3 100644
--- a/invoicing_voucher_killer/__openerp__.py
+++ b/invoicing_voucher_killer/__openerp__.py
@@ -34,6 +34,6 @@ This add-on will disable "Register Payment" button
           'invoice_view.xml'],
  'demo_xml': [],
  'test': [],
- 'installable': False,
+ 'installable': True,
  'active': False,
  }