diff --git a/packages/dev/src/app.tsx b/packages/dev/src/app.tsx
index 7d320b902..3efc230d9 100644
--- a/packages/dev/src/app.tsx
+++ b/packages/dev/src/app.tsx
@@ -7,7 +7,6 @@ import Embedded from './embedded'
import NoSizeEmbedded from './no-size-embedded'
import { Multiplayer } from './multiplayer'
import ChangingId from './changing-id'
-import Core from './core'
import './styles.css'
export default function App(): JSX.Element {
@@ -17,9 +16,6 @@ export default function App(): JSX.Element {