diff --git a/cms/static/cms/js/require-config.js b/cms/static/cms/js/require-config.js
index 3167c3136f..8139da6206 100644
--- a/cms/static/cms/js/require-config.js
+++ b/cms/static/cms/js/require-config.js
@@ -17,7 +17,6 @@ require.config({
     paths: {
         "domReady": "js/vendor/domReady",
         "gettext": "/i18n",
-        "json2": "js/vendor/json2",
         "mustache": "js/vendor/mustache",
         "codemirror": "js/vendor/codemirror-compressed",
         "codemirror/stex": "js/vendor/CodeMirror/stex",
@@ -96,9 +95,6 @@ require.config({
         ]
     },
     shim: {
-        "json2": {
-            exports: "JSON"
-        },
         "gettext": {
             exports: "gettext"
         },
diff --git a/cms/static/coffee/spec/main.coffee b/cms/static/coffee/spec/main.coffee
index f567289d27..a2a5cb3083 100644
--- a/cms/static/coffee/spec/main.coffee
+++ b/cms/static/coffee/spec/main.coffee
@@ -23,7 +23,6 @@ requirejs.config({
         "jquery.simulate": "xmodule_js/common_static/js/vendor/jquery.simulate",
         "datepair": "xmodule_js/common_static/js/vendor/timepicker/datepair",
         "date": "xmodule_js/common_static/js/vendor/date",
-        "json2": "xmodule_js/common_static/js/vendor/json2",
         "moment": "xmodule_js/common_static/js/vendor/moment.min",
         "moment-with-locales": "xmodule_js/common_static/js/vendor/moment-with-locales.min",
         "text": "xmodule_js/common_static/js/vendor/requirejs/text",
@@ -59,9 +58,6 @@ requirejs.config({
         "js/spec/test_utils": "js/spec/test_utils",
     }
     shim: {
-        "json2": {
-            exports: "JSON"
-        },
         "gettext": {
             exports: "gettext"
         },
diff --git a/cms/static/js/utils/drag_and_drop.js b/cms/static/js/utils/drag_and_drop.js
index 436ca7d4ff..6228a32019 100644
--- a/cms/static/js/utils/drag_and_drop.js
+++ b/cms/static/js/utils/drag_and_drop.js
@@ -1,6 +1,6 @@
-define(["jquery", "jquery.ui", "underscore", "json2", "gettext", "draggabilly",
+define(["jquery", "jquery.ui", "underscore", "gettext", "draggabilly",
         "js/utils/module", "common/js/components/views/feedback_notification"],
-    function ($, ui, _, JSON, gettext, Draggabilly, ModuleUtils, NotificationView) {
+    function ($, ui, _, gettext, Draggabilly, ModuleUtils, NotificationView) {
         'use strict';
 
         var contentDragger = {
diff --git a/cms/static/js_test.yml b/cms/static/js_test.yml
index b28c63aaf2..37e229f4eb 100644
--- a/cms/static/js_test.yml
+++ b/cms/static/js_test.yml
@@ -59,7 +59,6 @@ lib_paths:
     - xmodule_js/common_static/js/vendor/draggabilly.pkgd.js
     - xmodule_js/common_static/js/vendor/date.js
     - xmodule_js/common_static/js/vendor/domReady.js
-    - xmodule_js/common_static/js/vendor/json2.js
     - xmodule_js/common_static/js/vendor/URI.min.js
     - xmodule_js/common_static/js/vendor/jquery.smooth-scroll.min.js
     - xmodule_js/common_static/coffee/src/jquery.immediateDescendents.js
diff --git a/common/static/js/vendor/draggabilly.pkgd.js b/common/static/js/vendor/draggabilly.pkgd.js
index 9289408151..a266c7790d 100644
--- a/common/static/js/vendor/draggabilly.pkgd.js
+++ b/common/static/js/vendor/draggabilly.pkgd.js
@@ -1748,7 +1748,14 @@ return Unidragger;
 
   if ( typeof define == 'function' && define.amd ) {
     // AMD
-    define( [
+    // Note: fixed by andy-armstrong to include a name for the definition
+    // so that this works when optimized using r.js. This is only an issue
+    // in Studio, as the LMS uses a namespaced version of RequireJS so
+    // this clause isn't reached.
+    // See http://requirejs.org/docs/errors.html#mismatch
+    define(
+      'draggabilly',
+      [
         'classie/classie',
         'get-style-property/get-style-property',
         'get-size/get-size',