diff --git a/packages/next/build/webpack/plugins/flight-manifest-plugin.ts b/packages/next/build/webpack/plugins/flight-manifest-plugin.ts
index d300c27d7209..a7c32f98293f 100644
--- a/packages/next/build/webpack/plugins/flight-manifest-plugin.ts
+++ b/packages/next/build/webpack/plugins/flight-manifest-plugin.ts
@@ -121,12 +121,6 @@ export class FlightManifestPlugin {
         id: ModuleId,
         mod: webpack.NormalModule
       ) {
-        // if appDir is enabled we shouldn't process chunks from
-        // the pages dir
-        if (chunk.name?.startsWith('pages/') && appDir) {
-          return
-        }
-
         const isCSSModule =
           mod.type === 'css/mini-extract' ||
           (mod.loaders &&