diff --git a/src/utils.js b/src/utils.js
index 38ab6d88e12..88328ff10aa 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -111,7 +111,14 @@ export function tryAppendQueryString(existingUrl, key, value) {
 // parse a query string object passed in bid params
 // bid params should be an object such as {key: "value", key1 : "value1"}
 // aliases to formatQS
-export let parseQueryStringParameters = internal.formatQS;
+export function parseQueryStringParameters(queryObj) {
+  let result = '';
+  for (var k in queryObj) {
+    if (queryObj.hasOwnProperty(k)) { result += k + '=' + encodeURIComponent(queryObj[k]) + '&'; }
+  }
+  result = result.replace(/&$/, '');
+  return result;
+}
 
 // transform an AdServer targeting bids into a query string to send to the adserver
 export function transformAdServerTargetingObj(targeting) {
diff --git a/test/spec/utils_spec.js b/test/spec/utils_spec.js
index 96df3cf996c..4dbb40557af 100644
--- a/test/spec/utils_spec.js
+++ b/test/spec/utils_spec.js
@@ -63,12 +63,12 @@ describe('Utils', function () {
   describe('parseQueryStringParameters', function () {
     it('should append query string to existing using the input obj', function () {
       var obj = {
-        a: '1',
-        b: '2'
+        a: 'http://example.com/?foo=bar&bar=foo',
+        b: 'abc["def"]'
       };
 
       var output = utils.parseQueryStringParameters(obj);
-      var expectedResult = 'a=' + encodeURIComponent('1') + '&b=' + encodeURIComponent('2');
+      var expectedResult = 'a=' + encodeURIComponent('http://example.com/?foo=bar&bar=foo') + '&b=' + encodeURIComponent('abc["def"]');
       assert.equal(output, expectedResult);
     });