diff --git a/api/event.js b/api/event.js
index 88bc2543..6fa8f22a 100644
--- a/api/event.js
+++ b/api/event.js
@@ -17,7 +17,7 @@ export default async (request, context) => {
   if (ns) {
     const id = crypto.createHash('md5').update(`${context['ip']}${context['geo']['city']}`).digest('hex');
     const ids = getStore('ids')
-    if (!ids.get(id)) ids.set(id, '')
+    if (!ids.get(id)) ids.set(id, id)
     const idVal = ids.get(id)
     url = `https://cdn.usefathom.com/?h=${encodeURIComponent(page)}&sid=CWSVCDJC&cid=${idVal}`
   } else {