diff --git a/docs/mm.1 b/docs/mm.1
index 36fb1ba..e84ac66 100644
--- a/docs/mm.1
+++ b/docs/mm.1
@@ -68,7 +68,7 @@ Mm was modeled after the cat and tee utilities specified in POSIX.
 
 .SH COPYRIGHT
 
-Copyright (C) 2024 DTB. License AGPLv3+: GNU AGPL version 3 or later
+Copyright (c) 2024 DTB. License AGPLv3+: GNU AGPL version 3 or later
 <https://gnu.org/licenses/agpl.html>.
 
 .SH SEE ALSO