diff --git a/util/reggen/gen_cheader.py b/util/reggen/gen_cheader.py
index 7f8836d..6d242cb 100644
--- a/util/reggen/gen_cheader.py
+++ b/util/reggen/gen_cheader.py
@@ -2,7 +2,7 @@
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 """
-Generate C header from validated register json tree
+Generate C header from validated register JSON tree
 """
 
 import io