diff --git a/doc/app_notes/guard-interval.png.license b/doc/app_notes/guard-interval.png.license
index 7545c3b..f556e06 100644
--- a/doc/app_notes/guard-interval.png.license
+++ b/doc/app_notes/guard-interval.png.license
@@ -1,4 +1,4 @@
-# Author: Xianjun jiao
+# Author: Michael Mehari
 
 # SPDX-FileCopyrightText: 2019 UGent
 # SPDX-License-Identifier: AGPL-3.0-or-later