diff --git a/divent/bot.py b/divent/bot.py
index e1ad5e6..070a16d 100644
--- a/divent/bot.py
+++ b/divent/bot.py
@@ -140,7 +140,7 @@ async def ical(guild_id: str):
 
         calendar.events.append(event)
 
-    return str(calendar)
+    return calendar.serialize()
 
 
 quart_task = client.loop.create_task(app.run_task("0.0.0.0"))