diff --git a/apps/emqx_web_hook/src/emqx_web_hook_actions.erl b/apps/emqx_web_hook/src/emqx_web_hook_actions.erl
index fb63bdabf..f2c03233a 100644
--- a/apps/emqx_web_hook/src/emqx_web_hook_actions.erl
+++ b/apps/emqx_web_hook/src/emqx_web_hook_actions.erl
@@ -339,8 +339,7 @@ str(Str) when is_list(Str) -> Str;
 str(Atom) when is_atom(Atom) -> atom_to_list(Atom);
 str(Bin) when is_binary(Bin) -> binary_to_list(Bin).
 
-pool_opts(Params = #{<<"url">> := URL,
-                     <<"enable_pipelining">> := EnablePipelining}, ResId) ->
+pool_opts(Params = #{<<"url">> := URL}, ResId) ->
     {ok, #{host := Host,
            port := Port,
            scheme := Scheme}} = emqx_http_lib:uri_parse(URL),
@@ -353,6 +352,7 @@ pool_opts(Params = #{<<"url">> := URL,
             false -> []
         end,
     TransportOpts = emqx_misc:ipv6_probe(TransportOpts0),
+    EnablePipelining = maps:get(<<"enable_pipelining">>, Params, true),
     Opts = case Scheme =:= https  of
                true  -> [{transport_opts, TransportOpts}, {transport, ssl}];
                false -> [{transport_opts, TransportOpts}]