diff --git a/.changeset/six-icons-knock.md b/.changeset/six-icons-knock.md
new file mode 100644
index 000000000..bdb720046
--- /dev/null
+++ b/.changeset/six-icons-knock.md
@@ -0,0 +1,5 @@
+---
+"@opennextjs/aws": patch
+---
+
+fix edge middleware path on windows
diff --git a/packages/open-next/src/plugins/edge.ts b/packages/open-next/src/plugins/edge.ts
index 3509fde33..4ec38a141 100644
--- a/packages/open-next/src/plugins/edge.ts
+++ b/packages/open-next/src/plugins/edge.ts
@@ -19,6 +19,7 @@ import {
   loadRoutesManifest,
 } from "../adapters/config/util.js";
 import logger from "../logger.js";
+import { normalizePath } from "../utils/normalize-path.js";
 import { getCrossPlatformPathRegex } from "../utils/regex.js";
 
 export interface IPluginSettings {
@@ -39,7 +40,9 @@ export function openNextEdgePlugins({
   isInCloudflare,
 }: IPluginSettings): Plugin {
   const entryFiles =
-    middlewareInfo?.files.map((file: string) => path.join(nextDir, file)) ?? [];
+    middlewareInfo?.files.map((file: string) =>
+      normalizePath(path.join(nextDir, file)),
+    ) ?? [];
   const routes = middlewareInfo
     ? [
         {
diff --git a/packages/open-next/src/utils/normalize-path.ts b/packages/open-next/src/utils/normalize-path.ts
new file mode 100644
index 000000000..020135b5e
--- /dev/null
+++ b/packages/open-next/src/utils/normalize-path.ts
@@ -0,0 +1,3 @@
+export function normalizePath(path: string) {
+  return path.replace(/\\/g, "/");
+}