diff --git a/lib-ee/emqx_license/src/emqx_license_cli.erl b/lib-ee/emqx_license/src/emqx_license_cli.erl
index 26c3a074e..8ee498b13 100644
--- a/lib-ee/emqx_license/src/emqx_license_cli.erl
+++ b/lib-ee/emqx_license/src/emqx_license_cli.erl
@@ -41,7 +41,7 @@ license(_) ->
     emqx_ctl:usage(
         [
             {"license info", "Show license info"},
-            {"license update License", "Update license given as a string"}
+            {"license update <License>", "Update license given as a string"}
         ]
     ).