diff --git a/lib/httparrot/post_handler.ex b/lib/httparrot/post_handler.ex
index 2eadb96..7a1166d 100644
--- a/lib/httparrot/post_handler.ex
+++ b/lib/httparrot/post_handler.ex
@@ -8,11 +8,16 @@ defmodule HTTParrot.PostHandler do
   def allowed_methods(req, state) do
     {["POST"], req, state}
   end
+
   def content_types_accepted(req, state) do
     {[{{"application", "json", :*}, :post_json},
       {{"application", "x-www-form-urlencoded", :*}, :post_form}], req, state}
   end
 
+  def content_types_provided(req, state) do
+    {[{{"application", "json", []}, :undefined}], req, state}
+  end
+
   def post_form(req, _state) do
     {:ok, body, req} = :cowboy_req.body_qs(req)
     post(req, [form: body, data: "", json: nil])