diff --git a/tests/chage/01/data/usage b/tests/chage/01/data/usage
index 7121abf4..d5e89b80 100644
--- a/tests/chage/01/data/usage
+++ b/tests/chage/01/data/usage
@@ -1,7 +1,7 @@
 Usage: chage [options] [LOGIN]
 
 Options:
-  -d, --lastday LAST_DAY        set last password change to LAST_DAY
+  -d, --lastday LAST_DAY        set date of last password change to LAST_DAY
   -E, --expiredate EXPIRE_DATE  set account expiration date to EXPIRE_DATE
   -h, --help                    display this help message and exit
   -I, --inactive INACTIVE       set password inactive after expiration