diff --git a/packages/next/server/on-demand-entry-handler.ts b/packages/next/server/on-demand-entry-handler.ts
index 550fd09adb3f26..5227b88d9addd2 100644
--- a/packages/next/server/on-demand-entry-handler.ts
+++ b/packages/next/server/on-demand-entry-handler.ts
@@ -414,6 +414,11 @@ export function normalizePage(page: string) {
   if (unixPagePath === '/index' || unixPagePath === '/') {
     return '/'
   }
+
+  if (!unixPagePath.startsWith('/')) {
+    return '/' + unixPagePath.replace(/\/index$/, '')
+  }
+
   return unixPagePath.replace(/\/index$/, '')
 }