diff --git a/app/utils/sandbox.ts b/app/utils/sandbox.ts
index ad9d8f6cf..a117e579e 100644
--- a/app/utils/sandbox.ts
+++ b/app/utils/sandbox.ts
@@ -5,7 +5,7 @@ export const getInitialSandboxFileName = (
   libraryId?: string
 ) => {
   if (libraryId === 'start') {
-    return 'app/routes/__root.tsx'
+    return 'src/routes/__root.tsx'
   }
 
   const dir = 'src'