diff --git a/src/calendar.js b/src/calendar.js
index 902e020..4f1f0e5 100644
--- a/src/calendar.js
+++ b/src/calendar.js
@@ -1,4 +1,5 @@
 import STATIC_LOCATIONS from './static-ens-locations.json'
+import ICAL from 'ical.js'
 
 // https://stackoverflow.com/a/35970186
 function invertColor(hex) {
@@ -208,7 +209,9 @@ function mkExportUrl(id, { cloud }) {
 
 function fetchCalendar(id, cal, extra = {}) {
   return fetch(mkCalendarUrl(id, cal, extra), { credentials: 'omit' })
-    .then(resp => resp.json())
+    .then( cal.isICS
+      ? resp => resp.text().then(text => ICAL.parse(text))
+      : resp => resp.json())
     .catch(err => console.error(err))
 }