diff --git a/apps/sdlan/src/sdlan_api.erl b/apps/sdlan/src/sdlan_api.erl
index 83340ca..89ce7b6 100644
--- a/apps/sdlan/src/sdlan_api.erl
+++ b/apps/sdlan/src/sdlan_api.erl
@@ -47,10 +47,9 @@ get_network(Id) when is_integer(Id) ->
             Error
     end.
 
-%% todo
 -spec auth_access_token(Params :: map()) -> {ok, Resp :: map()} | {error, Reason :: any()}.
 auth_access_token(Params) when is_map(Params) ->
-    case catch do_post("auth_access_token", Params) of
+    case catch do_post("auth/access_token", Params) of
         {ok, Resp} ->
             case catch jiffy:decode(Resp, [return_maps]) of
                 Result when is_map(Result) ->