diff --git a/src/login/loginctl.c b/src/login/loginctl.c
index b9c34cfc0f..63253bd9dc 100644
--- a/src/login/loginctl.c
+++ b/src/login/loginctl.c
@@ -1517,7 +1517,10 @@ static int help(int argc, char *argv[], void *userdata) {
                "     --kill-whom=WHOM      Whom to send signal to\n"
                "  -s --signal=SIGNAL       Which signal to send\n"
                "  -n --lines=INTEGER       Number of journal entries to show\n"
-               "  -o --output=STRING       Change journal output mode (short, short-precise,\n"
+               "     --json=MODE           Generate JSON output for list-sessions/users/seats\n"
+               "                             (takes one of pretty, short, or off)\n"
+               "  -j                       Same as --json=pretty on tty, --json=short otherwise\n"
+               "  -o --output=MODE         Change journal output mode (short, short-precise,\n"
                "                             short-iso, short-iso-precise, short-full,\n"
                "                             short-monotonic, short-unix, short-delta,\n"
                "                             json, json-pretty, json-sse, json-seq, cat,\n"