diff --git a/babel-plugin-add-module-to-define.js b/babel-plugin-add-module-to-define.js
index 2169daed0b2..133df3ff2af 100644
--- a/babel-plugin-add-module-to-define.js
+++ b/babel-plugin-add-module-to-define.js
@@ -36,6 +36,7 @@
 
 module.exports = ({ template, types }) => {
     const fs = require('fs');
+    const path = require('path');
     const glob = require('glob');
     const cwd = process.cwd();
 
@@ -72,7 +73,7 @@ module.exports = ({ template, types }) => {
             var rawContents = fs.readFileSync(file);
             var subplugins = JSON.parse(rawContents);
 
-            for (const [component, path] of Object.entries(subplugins)) {
+            for (const [component, path] of Object.entries(subplugins.plugintypes)) {
                 if (path) {
                     moodlePlugins[path] = component;
                 }
@@ -92,7 +93,7 @@ module.exports = ({ template, types }) => {
      */
     function getModuleNameFromFileName(searchFileName) {
         searchFileName = fs.realpathSync(searchFileName);
-        const relativeFileName = searchFileName.replace(`${cwd}/`, '');
+        const relativeFileName = searchFileName.replace(`${cwd}${path.sep}`, '').replace(/\\/g, '/');
         const [componentPath, file] = relativeFileName.split('/amd/src/');
         const fileName = file.replace('.js', '');
 
@@ -202,4 +203,4 @@ module.exports = ({ template, types }) => {
             }
         }
     };
-};
\ No newline at end of file
+};