diff --git a/lib/heightBuilder.js b/lib/heightBuilder.js
index 7a3d2de20..62574e268 100644
--- a/lib/heightBuilder.js
+++ b/lib/heightBuilder.js
@@ -6,8 +6,10 @@ import { getJSPageHeight, getWatPageHeight } from "./processor.js";
 
 const config = getConfig();
 
+const rootDir = new URL("..", import.meta.url);
+
 function getEditorHeights() {
-  return fse.readJsonSync(config.editorHeights);
+  return fse.readJsonSync(new URL(config.editorHeights, rootDir));
 }
 
 /**
diff --git a/webpack.config.js b/webpack.config.js
index 193a130b3..8a190d4fe 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -19,22 +19,30 @@ export default {
   ],
   entry: {
     "editor-tabbed": {
-      import: "./editor/js/editor.js",
+      import: fileURLToPath(new URL("./editor/js/editor.js", import.meta.url)),
       dependOn: "codemirror",
     },
     "editor-css": {
-      import: "./editor/js/editable-css.js",
+      import: fileURLToPath(
+        new URL("./editor/js/editable-css.js", import.meta.url)
+      ),
       dependOn: "codemirror",
     },
     "editor-js": {
-      import: "./editor/js/editable-js.js",
+      import: fileURLToPath(
+        new URL("./editor/js/editable-js.js", import.meta.url)
+      ),
       dependOn: "codemirror",
     },
     "editor-wat": {
-      import: "./editor/js/editable-wat.js",
+      import: fileURLToPath(
+        new URL("./editor/js/editable-wat.js", import.meta.url)
+      ),
       dependOn: "codemirror",
     },
-    codemirror: "./editor/js/editor-libs/codemirror-editor.js",
+    codemirror: fileURLToPath(
+      new URL("./editor/js/editor-libs/codemirror-editor.js", import.meta.url)
+    ),
   },
   output: {
     path: fileURLToPath(new URL("docs", import.meta.url)),