diff --git a/src/element/live-chat.tsx b/src/element/live-chat.tsx
index 29a5bd5..c563dbe 100644
--- a/src/element/live-chat.tsx
+++ b/src/element/live-chat.tsx
@@ -146,7 +146,8 @@ function ChatZap({ ev }: { ev: TaggedRawEvent }) {
       parsed.sender
     ) {
       System.ProfileLoader.TrackMetadata(parsed.sender);
-      return () => System.ProfileLoader.UntrackMetadata(parsed.sender);
+      return () =>
+        System.ProfileLoader.UntrackMetadata(parsed.sender as string);
     }
   }, [parsed]);