diff --git a/packages/next/src/server/next.ts b/packages/next/src/server/next.ts index 83683ab617c3e..7ebfef9dfa1c4 100644 --- a/packages/next/src/server/next.ts +++ b/packages/next/src/server/next.ts @@ -169,7 +169,8 @@ export class NextServer { ): Promise { let ServerImplementation: typeof Server if (options.dev) { - ServerImplementation = require('./dev/next-dev-server').default + ServerImplementation = require('./dev/next-dev-server') + .default as typeof import('./dev/next-dev-server').default } else { ServerImplementation = await getServerImpl() }