diff --git a/packages/netlify-cms-core/package.json b/packages/netlify-cms-core/package.json
index 084aa09c..7e770753 100644
--- a/packages/netlify-cms-core/package.json
+++ b/packages/netlify-cms-core/package.json
@@ -21,7 +21,6 @@
   "dependencies": {
     "ajv": "^6.4.0",
     "ajv-errors": "^1.0.0",
-    "create-react-class": "^15.6.0",
     "diacritics": "^1.3.0",
     "emotion": "^9.2.6",
     "fuzzy": "^0.1.1",
diff --git a/packages/netlify-cms-core/src/index.js b/packages/netlify-cms-core/src/index.js
index b3b8bde9..b74d5d4f 100644
--- a/packages/netlify-cms-core/src/index.js
+++ b/packages/netlify-cms-core/src/index.js
@@ -1,25 +1,4 @@
-import React from 'react';
 import bootstrap from './bootstrap';
 import registry from 'Lib/registry';
-import createReactClass from 'create-react-class';
-
-/**
- * Load Netlify CMS automatically if `window.CMS_MANUAL_INIT` is set.
- */
-if (!window.CMS_MANUAL_INIT) {
-  bootstrap();
-} else {
-  console.log('`window.CMS_MANUAL_INIT` flag set, skipping automatic initialization.');
-}
-
-/**
- * Add extension hooks to global scope.
- */
-if (typeof window !== 'undefined') {
-  window.CMS = registry;
-  window.initCMS = bootstrap;
-  window.createClass = window.createClass || createReactClass;
-  window.h = window.h || React.createElement;
-}
 
 export { registry as default, bootstrap as init };
diff --git a/packages/netlify-cms/package.json b/packages/netlify-cms/package.json
index cea6957f..dc1ce8e4 100644
--- a/packages/netlify-cms/package.json
+++ b/packages/netlify-cms/package.json
@@ -21,6 +21,7 @@
   ],
   "license": "MIT",
   "dependencies": {
+    "create-react-class": "^15.6.0",
     "emotion": "^9.2.6",
     "netlify-cms-backend-bitbucket": "^2.1.0",
     "netlify-cms-backend-git-gateway": "^2.1.0",
diff --git a/packages/netlify-cms/src/index.js b/packages/netlify-cms/src/index.js
index c8fd5234..6149c990 100644
--- a/packages/netlify-cms/src/index.js
+++ b/packages/netlify-cms/src/index.js
@@ -1,7 +1,28 @@
+import createReactClass from 'create-react-class';
+import React from 'react';
 import CMS, { init } from 'netlify-cms-core/src';
 import './backends';
 import './widgets';
 import './editor-components';
 import './media-libraries';
 
+/**
+ * Load Netlify CMS automatically if `window.CMS_MANUAL_INIT` is set.
+ */
+if (!window.CMS_MANUAL_INIT) {
+  init();
+} else {
+  console.log('`window.CMS_MANUAL_INIT` flag set, skipping automatic initialization.');
+}
+
+/**
+ * Add extension hooks to global scope.
+ */
+if (typeof window !== 'undefined') {
+  window.CMS = CMS;
+  window.initCMS = init;
+  window.createClass = window.createClass || createReactClass;
+  window.h = window.h || React.createElement;
+}
+
 export { CMS as default, init };