diff --git a/src/lib/queues/ssl.ts b/src/lib/queues/ssl.ts
index f041153d6..84b608fae 100644
--- a/src/lib/queues/ssl.ts
+++ b/src/lib/queues/ssl.ts
@@ -1,6 +1,6 @@
 import { generateSSLCerts } from '$lib/letsencrypt';
 
-export default async function () {
+export default async function (): Promise<void> {
 	try {
 		return await generateSSLCerts();
 	} catch (error) {