diff --git a/src/http_handler/http_protocol.erl b/src/http_handler/http_protocol.erl
index 6f829f4..b24140d 100644
--- a/src/http_handler/http_protocol.erl
+++ b/src/http_handler/http_protocol.erl
@@ -47,7 +47,7 @@ init(Req0, Opts = [Mod|_]) ->
             {ok, Req2, Opts};
         _:Error:Stack ->
             logger:warning("[http_handler] get error: ~p, stack: ~p", [Error, Stack]),
-            ErrorBin = term_to_binary(Error),
+            ErrorBin = sdlan_util:term_to_binary(Error),
             Req2 = cowboy_req:reply(500, #{
                 <<"Content-Type">> => <<"text/html;charset=utf-8">>
             }, <<"Internal Server Error: ", ErrorBin/binary>>, Req1),