diff --git a/node_modules/c9/rest_client.js b/node_modules/c9/rest_client.js
index 8631edf5..0aec2fff 100644
--- a/node_modules/c9/rest_client.js
+++ b/node_modules/c9/rest_client.js
@@ -36,7 +36,7 @@ function RestClient(host, port, config) {
         var headers = _.extend({
             "Accept": "application/json",
             "Content-Type": "application/json",
-            "Content-Length": payload.length
+            "Content-Length": Buffer.byteLength(payload)
         }, config.headers || {});
         
         var options = {