diff --git a/util/lint/checkpatch.pl b/util/lint/checkpatch.pl
index 95296b9914..d044d8d4ed 100755
--- a/util/lint/checkpatch.pl
+++ b/util/lint/checkpatch.pl
@@ -618,6 +618,7 @@ our $signature_tags = qr{(?xi:
 	Reviewed-by:|
 	Reported-by:|
 	Suggested-by:|
+	Co-authored-by:|
 	To:|
 	Cc:
 )};