diff --git a/packages/adapter-cloudflare-workers/files/.assetsignore b/packages/adapter-cloudflare-workers/files/.assetsignore
new file mode 100644
index 000000000000..c2634cc3650a
--- /dev/null
+++ b/packages/adapter-cloudflare-workers/files/.assetsignore
@@ -0,0 +1,4 @@
+_worker.js
+_routes.json
+_headers
+_redirects
diff --git a/packages/adapter-cloudflare-workers/index.js b/packages/adapter-cloudflare-workers/index.js
index 8a4f9252d1ac..282930f20b5e 100644
--- a/packages/adapter-cloudflare-workers/index.js
+++ b/packages/adapter-cloudflare-workers/index.js
@@ -1,4 +1,4 @@
-import { existsSync, readFileSync, writeFileSync } from 'node:fs';
+import { copyFileSync, existsSync, readFileSync, writeFileSync } from 'node:fs';
 import { posix, dirname } from 'node:path';
 import { execSync } from 'node:child_process';
 import esbuild from 'esbuild';
@@ -143,6 +143,8 @@ export default function ({ config = 'wrangler.toml', platformProxy = {} } = {})
 				);
 			}
 
+			copyFileSync(`${files}/.assetsignore`, `${dirname(main)}/.assetsignore`);
+
 			builder.log.minor('Copying assets...');
 			const bucket_dir = `${site.bucket}${builder.config.kit.paths.base}`;
 			builder.writeClient(bucket_dir);