diff --git a/.changeset/cool-ads-lose.md b/.changeset/cool-ads-lose.md
new file mode 100644
index 000000000..385a51b79
--- /dev/null
+++ b/.changeset/cool-ads-lose.md
@@ -0,0 +1,5 @@
+---
+"@opennextjs/cloudflare": minor
+---
+
+add cloudflare:\* to external builds
diff --git a/packages/cloudflare/src/cli/build/bundle-server.ts b/packages/cloudflare/src/cli/build/bundle-server.ts
index 52cf3147d..4d3636996 100644
--- a/packages/cloudflare/src/cli/build/bundle-server.ts
+++ b/packages/cloudflare/src/cli/build/bundle-server.ts
@@ -104,7 +104,7 @@ export async function bundleServer(buildOpts: BuildOptions): Promise<void> {
       // Apply updater updates, must be the last plugin
       updater.plugin,
     ] as Plugin[],
-    external: ["./middleware/handler.mjs"],
+    external: ["./middleware/handler.mjs", "cloudflare:*"],
     alias: {
       // Note: it looks like node-fetch is actually not necessary for us, so we could replace it with an empty shim
       //       but just to be safe we replace it with a module that re-exports the native fetch