diff --git a/README.md b/README.md
index 41b3352..ebab0b5 100644
--- a/README.md
+++ b/README.md
@@ -22,5 +22,6 @@ $ expiration-check certificates -d example.com -d other-example.com -d mail.exam
 +-------------------+------+---------------------+
 | example.com       | XX   | YYYY-MM-DD HH:MM:SS |
 | other-example.com | XXX  | YYYY-MM-DD HH:MM:SS |
+| mail.example.com  | XXX  | YYYY-MM-DD HH:MM:SS |
 +-------------------+------+---------------------+
 ```