diff --git a/lib/cache.js b/lib/cache.js
index b7cc24f..147b983 100644
--- a/lib/cache.js
+++ b/lib/cache.js
@@ -21,7 +21,7 @@ const getCached = () => {
       }
 
       needle.get(`https://${config['netlify-domain']}/catalog.json`, config.needle, (err, resp, body) => {
-        if ((body || [])[0].transportUrl && body[0].transportName && body[0].manifest) {
+        if ((body || []).length && body[0].transportUrl && body[0].transportName && body[0].manifest) {
           console.log('loaded old addon catalog')
           cached.catalog = body
         } else {