diff --git a/ghost/admin/ember-cli-build.js b/ghost/admin/ember-cli-build.js
index dcbab76446..bcb64a4283 100644
--- a/ghost/admin/ember-cli-build.js
+++ b/ghost/admin/ember-cli-build.js
@@ -205,6 +205,7 @@ module.exports = function (defaults) {
         autoImport: {
             publicAssetURL,
             webpack: {
+                devtool: 'source-map',
                 resolve: {
                     fallback: {
                         util: require.resolve('util'),