diff --git a/tools/challenge-editor/client/src/app.css b/tools/challenge-editor/client/src/app.css
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/tools/challenge-editor/client/src/app.tsx b/tools/challenge-editor/client/src/app.tsx
index c204a39ca8e..4a132dc1ed2 100644
--- a/tools/challenge-editor/client/src/app.tsx
+++ b/tools/challenge-editor/client/src/app.tsx
@@ -1,5 +1,4 @@
 import * as React from 'react';
-import './app.css';
 import { BrowserRouter as Router, Routes, Route } from 'react-router-dom';
 import Header from './components/header/header';
 import Landing from './components/landing/landing';