1 files changed, 6 insertions, 2 deletions
diff --git a/lib/querystring.js b/lib/querystring.js
index ad1b5861a0..bacfc4bd70 100644
--- a/lib/querystring.js
+++ b/lib/querystring.js
@@ -90,8 +90,12 @@ for (var i = 0; i < 256; ++i)
 QueryString.escape = function(str) {
   // replaces encodeURIComponent
   // http://www.ecma-international.org/ecma-262/5.1/#sec-15.1.3.4
-  if (typeof str !== 'string')
-    str += '';
+  if (typeof str !== 'string') {
+    if (typeof str === 'object')
+      str = String(str);
+    else
+      str += '';
+  }
   var out = '';
   var lastPos = 0;