diff --git a/htdocs/includes/tcpdi/tcpdi.php b/htdocs/includes/tcpdi/tcpdi.php
index 675e2226b4a..f4c0bd00391 100644
--- a/htdocs/includes/tcpdi/tcpdi.php
+++ b/htdocs/includes/tcpdi/tcpdi.php
@@ -9,7 +9,7 @@
 //  you may not use this file except in compliance with the License.
 //  You may obtain a copy of the License at
 //
-//      http://www.apache.org/licenses/LICENSE-2.0
+//      https://www.apache.org/licenses/LICENSE-2.0
 //
 //  Unless required by applicable law or agreed to in writing, software
 //  distributed under the License is distributed on an "AS IS" BASIS,