diff --git a/.changeset/funny-pets-melt.md b/.changeset/funny-pets-melt.md
new file mode 100644
index 000000000000..1a8a5a94605f
--- /dev/null
+++ b/.changeset/funny-pets-melt.md
@@ -0,0 +1,5 @@
+---
+"@sveltejs/adapter-cloudflare": patch
+---
+
+fix: await `init` on every request to prevent race condition
diff --git a/packages/adapter-cloudflare/src/worker.js b/packages/adapter-cloudflare/src/worker.js
index 2cd48bef71ba..bcee34b882e2 100644
--- a/packages/adapter-cloudflare/src/worker.js
+++ b/packages/adapter-cloudflare/src/worker.js
@@ -46,9 +46,11 @@ export default {
 	async fetch(req, env, ctx) {
 		if (!origin) {
 			origin = new URL(req.url).origin;
-			await initialized;
 		}
 
+		// always await initialization to prevent race condition with concurrent requests
+		await initialized;
+
 		// skip cache if "cache-control: no-cache" in request
 		let pragma = req.headers.get('cache-control') || '';
 		let res = !pragma.includes('no-cache') && (await Cache.lookup(req));