diff --git a/package.json b/package.json
index 087d5d49..41f9504c 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,7 @@
   "devDependencies": {
     "babel-core": "^6.22.1",
     "babel-plugin-add-module-exports": "^0.2.1",
+    "babel-plugin-import-redirect": "*",
     "babel-plugin-syntax-dynamic-import": "^6.18.0",
     "babel-plugin-transform-es2015-modules-amd": "^6.22.0",
     "babel-plugin-transform-es2015-modules-commonjs": "^6.18.0",
diff --git a/utils/use_require.js b/utils/use_require.js
index 3c249284..30d4cbd3 100755
--- a/utils/use_require.js
+++ b/utils/use_require.js
@@ -131,6 +131,13 @@ var make_lib_files = function (import_format, source_maps, with_app_dir) {
             if (helper && helpers.optionsOverride) {
                 helper.optionsOverride(opts);
             }
+            // Adjust for the fact that we move the core files relative
+            // to the vendor directory
+            if (!in_path) {
+                opts.plugins.push(["import-redirect",
+                                   {"root": out_path_base,
+                                    "redirect": { "vendor/(.+)": "./vendor/$1"}}]);
+            }
 
             babel.transformFile(filename, opts, (err, res) => {
                 console.log(`Writing ${out_path}`);