diff --git a/src/riak_kv_wm_timeseries.erl b/src/riak_kv_wm_timeseries.erl
index bde3e0da8b..46f1a7be94 100644
--- a/src/riak_kv_wm_timeseries.erl
+++ b/src/riak_kv_wm_timeseries.erl
@@ -194,7 +194,7 @@ validate_request(RD, Ctx) ->
 -spec validate_request_v1(#wm_reqdata{}, #ctx{}) ->
                                  ?CB_RV_SPEC.
 validate_request_v1(RD, Ctx = #ctx{method = 'POST'}) ->
-    Json = extract_json(RD),
+    Json = binary_to_list(wrq:req_body(RD)),
     case extract_data(Json) of
         Data when Data /= undefined ->
             valid_params(
@@ -228,14 +228,6 @@ validate_request_v1(RD, Ctx = #ctx{method = 'DELETE', table = Table,
             handle_error(Reason, RD, Ctx)
     end.
 
-extract_json(RD) ->
-    case proplists:get_value("json", RD#wm_reqdata.req_qs) of
-        undefined ->
-            %% if it was a PUT or POST, data is in body
-            binary_to_list(wrq:req_body(RD));
-        BodyInPost ->
-            BodyInPost
-    end.
 
 %% because, techically, key and data are 'arguments', we check they
 %% are well-formed, too.