diff --git a/src/emqttd_pool_sup.erl b/src/emqttd_pool_sup.erl
index bc8f59562..fa1d6aace 100644
--- a/src/emqttd_pool_sup.erl
+++ b/src/emqttd_pool_sup.erl
@@ -36,7 +36,7 @@ spec(ChildId, Args) ->
     {ChildId, {?MODULE, start_link, Args},
         transient, infinity, supervisor, [?MODULE]}.
 
--spec(start_link(atom(), atom(), mfa()) -> {ok, pid()} | {error, any()}).
+-spec(start_link(atom() | tuple(), atom(), mfa()) -> {ok, pid()} | {error, any()}).
 start_link(Pool, Type, MFA) ->
     Schedulers = erlang:system_info(schedulers),
     start_link(Pool, Type, Schedulers, MFA).
diff --git a/src/emqttd_router.erl b/src/emqttd_router.erl
index 3da32b845..e4a42b85d 100644
--- a/src/emqttd_router.erl
+++ b/src/emqttd_router.erl
@@ -109,7 +109,7 @@ add_route(Topic, Node) when is_binary(Topic), is_atom(Node) ->
     add_route(#mqtt_route{topic = Topic, node = Node}).
 
 %% @doc Add Routes
--spec(add_routes([mqtt_route()]) -> ok | {errory, Reason :: any()}).
+-spec(add_routes([mqtt_route()]) -> ok | {error, Reason :: any()}).
 add_routes(Routes) ->
     AddFun = fun() -> [add_route_(Route) || Route <- Routes] end,
     case mnesia:is_transaction() of