diff --git a/static/src/xml/cash_flow.xml b/static/src/xml/cash_flow.xml
index 3cbb0b9fe634fec07db0ba8b2b9f74b6b8d71ed2..7e3f5d1a3fe0539e08655c3dfcfe88b9810ee62b 100644
--- a/static/src/xml/cash_flow.xml
+++ b/static/src/xml/cash_flow.xml
@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2017 Le Filament (<https://www.le-filament.com>)
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
 <templates xml:space="preserve">
     <t t-name="CashFlow">
         <div class="card">