diff --git a/mail_template.py b/mail_template.py
index d97ad96..def1ebe 100755
--- a/mail_template.py
+++ b/mail_template.py
@@ -1,5 +1,9 @@
 #!/usr/bin/python3
 
+# Copyright 2021 Adam Rabjerg
+# Licensed under GNU GPL-3.0-or-later
+# https://www.gnu.org/licenses/gpl-3.0.txt
+
 # Imports
 
 import smtplib