diff --git a/account_voucher_killer/README.md b/account_voucher_killer/README.rst
similarity index 67%
rename from account_voucher_killer/README.md
rename to account_voucher_killer/README.rst
index e05d871dd..10c4aa1dd 100644
--- a/account_voucher_killer/README.md
+++ b/account_voucher_killer/README.rst
@@ -1,4 +1,5 @@
-# Prevent the usage of voucher from invoices
+Prevent the usage of voucher from invoices
+==========================================
 
 This add-on disables the "Register Payment" button on
 customer invoices and the "Pay" button on supplier invoices.
@@ -9,3 +10,10 @@ It also disables the voucher-related menus entries such as
 
 More precisely, this module adds a group "Use voucher in Invoices"
 and only users in that group see these buttons and menus.
+
+Contributors
+------------
+
+* Nicolas Bessi (camptocamp)
+* Stéphane Bidoul (ACSONE SA/NV)
+* Anthony Muschang (ACSONE SA/NV)