diff --git a/packages/next/build/index.ts b/packages/next/build/index.ts
index 2b0482838af1f..8533413b197d9 100644
--- a/packages/next/build/index.ts
+++ b/packages/next/build/index.ts
@@ -1358,7 +1358,7 @@ export default async function build(
                         MIDDLEWARE_MANIFEST
                       ))
                       const manifestKey =
-                        pageType === 'pages' ? page : join(page, 'page')
+                        pageType === 'pages' ? page : originalAppPath || ''
 
                       edgeInfo = manifest.functions[manifestKey]
                     }
diff --git a/test/e2e/app-dir/app/app/(rootonly)/dashboard/hello/page.js b/test/e2e/app-dir/app/app/(rootonly)/dashboard/hello/page.js
index f7d874bf7c554..20fef22a73245 100644
--- a/test/e2e/app-dir/app/app/(rootonly)/dashboard/hello/page.js
+++ b/test/e2e/app-dir/app/app/(rootonly)/dashboard/hello/page.js
@@ -5,3 +5,7 @@ export default function HelloPage(props) {
     </>
   )
 }
+
+export const config = {
+  runtime: 'experimental-edge',
+}