diff --git a/util.c b/util.c
index c525b3d2..e0371dfc 100644
--- a/util.c
+++ b/util.c
@@ -145,24 +145,6 @@ static size_t all_data_cb(const void *ptr, size_t size, size_t nmemb,
   return len;
 }
 
-static size_t upload_data_cb(void *ptr, size_t size, size_t nmemb,
-           void *user_data)
-{
-  struct upload_buffer *ub = (struct upload_buffer *)user_data;
-  unsigned int len = size * nmemb;
-
-  if (len > ub->len)
-    len = ub->len;
-
-  if (len > 0) {
-    memcpy(ptr, ub->buf, len);
-    ub->buf = (uint8_t*)ub->buf + len;
-    ub->len -= len;
-  }
-
-  return len;
-}
-
 static size_t resp_hdr_cb(void *ptr, size_t size, size_t nmemb, void *user_data)
 {
   struct header_info *hi = (struct header_info *)user_data;
@@ -339,8 +321,6 @@ json_t *json_rpc_call(CURL *curl, char *curl_err_str, const char *url,
     curl_easy_setopt(curl, CURLOPT_TCP_NODELAY, 1);
   curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, all_data_cb);
   curl_easy_setopt(curl, CURLOPT_WRITEDATA, &all_data);
-  curl_easy_setopt(curl, CURLOPT_READFUNCTION, upload_data_cb);
-  curl_easy_setopt(curl, CURLOPT_READDATA, &upload_data);
   curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_err_str);
   curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
   curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, resp_hdr_cb);
@@ -360,14 +340,12 @@ json_t *json_rpc_call(CURL *curl, char *curl_err_str, const char *url,
   if (longpoll)
     keep_curlalive(curl);
   curl_easy_setopt(curl, CURLOPT_POST, 1);
+  curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, strlen (rpc_req));
+   curl_easy_setopt(curl, CURLOPT_POSTFIELDS, rpc_req);
 
   if (opt_protocol)
     applog(LOG_DEBUG, "JSON protocol request:\n%s", rpc_req);
 
-  upload_data.buf = rpc_req;
-  upload_data.len = strlen(rpc_req);
-  sprintf(len_hdr, "Content-Length: %lu",
-    (unsigned long) upload_data.len);
   sprintf(user_agent_hdr, "User-Agent: %s", PACKAGE_STRING);
 
   headers = curl_slist_append(headers,