diff --git a/pos_order_return/readme/USAGE.rst b/pos_order_return/readme/USAGE.rst
index 1a2690ee..860c0042 100644
--- a/pos_order_return/readme/USAGE.rst
+++ b/pos_order_return/readme/USAGE.rst
@@ -7,8 +7,7 @@ products and quantities to return:
 Register the refund payment to finish the return. If the original order was
 invoiced, a refund invoice will be made.
 
-Implemented Constraints
------------------------
+**Implemented Constraints**
 
 * User can not return more products than the initial quantity: