diff --git a/routes/index.mjs b/routes/index.mjs
index 0e8ebc1..864012a 100644
--- a/routes/index.mjs
+++ b/routes/index.mjs
@@ -5,8 +5,8 @@ import express from 'express';
 let router = express.Router();
 
 /* GET manifest JSON */
-router.get('/iiif/:manifestid/manifest', function(req, res) {
-	const manifest = generateManifest(req.params.manifestid)
+router.get('/iiif/:manifestid/manifest', async function(req, res) {
+	const manifest = await generateManifest(req.params.manifestid)
 	res.json(manifest);
 });