diff --git a/packages/next/server/dev/on-demand-entry-handler.ts b/packages/next/server/dev/on-demand-entry-handler.ts
index 9622f73e114be0a..6df016d7e59e3b4 100644
--- a/packages/next/server/dev/on-demand-entry-handler.ts
+++ b/packages/next/server/dev/on-demand-entry-handler.ts
@@ -43,7 +43,6 @@ export default function onDemandEntryHandler(
 ) {
   const { compilers } = multiCompiler
   const invalidator = new Invalidator(watcher, multiCompiler)
-  const hasReactRoot = !!nextConfig.experimental.reactRoot
 
   let lastClientAccessPages = ['']
   let doneCallbacks: EventEmitter | null = new EventEmitter()
diff --git a/test/unit/parse-page-runtime.test.ts b/test/unit/parse-page-runtime.test.ts
index 5e34fe8737a12c0..f37490d6b0c29f4 100644
--- a/test/unit/parse-page-runtime.test.ts
+++ b/test/unit/parse-page-runtime.test.ts
@@ -1,9 +1,10 @@
 import { getPageRuntime } from 'next/dist/build/entries'
+import type { PageRuntime } from 'next/dist/server/config-shared'
 import { join } from 'path'
 
 const fixtureDir = join(__dirname, 'fixtures')
 
-function createNextConfig(runtime?: string) {
+function createNextConfig(runtime?: PageRuntime) {
   return {
     experimental: { reactRoot: true, runtime },
   }