diff --git a/lib/index.js b/lib/index.js
index 99eb1102..cd818138 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -682,7 +682,9 @@ var Client = module.exports = function (config) {
     if (hasBody) {
       if (format === 'json') {
         query = JSON.stringify(query)
-      } else if (format !== 'raw') {
+      } else if (format === 'raw') {
+        query = msg.data
+      } else {
         query = query.join('&')
       }
       headers['content-length'] = Buffer.byteLength(query || '', 'utf8')