diff --git a/apps/emqttd/src/emqttd_ctl.erl b/apps/emqttd/src/emqttd_ctl.erl
index 3499c3855..0a3debac6 100644
--- a/apps/emqttd/src/emqttd_ctl.erl
+++ b/apps/emqttd/src/emqttd_ctl.erl
@@ -95,7 +95,7 @@ cluster([SNode]) ->
     end.
 
 %%------------------------------------------------------------------------------
-%% @doc Add usern
+%% @doc Add user
 %% @end
 %%------------------------------------------------------------------------------
 useradd([Username, Password]) ->