diff --git a/documentation/conf.py b/documentation/conf.py
index 34cc559889877ed699886b3e4fa8d2b0db6672f6..abb4237d0dc8c6f05d58b8b3f7fbd58ba7e6cd1c 100644
--- a/documentation/conf.py
+++ b/documentation/conf.py
@@ -1,9 +1,8 @@
 #
 # (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
 #
-# This software is distributed under the terms of the GNU General Public
-# Licence version 3 (GPL Version 3). See file LICENSE for a full version of
-# the license.
+# This software is distributed under the terms of the 3-clause BSD license.
+# See file LICENSE for a full version of the license.
 #
 
 """