diff --git a/examples/chat/pages/chat.$id.go b/examples/chat/pages/chat.$id.go
index f38baab..70e7fd4 100644
--- a/examples/chat/pages/chat.$id.go
+++ b/examples/chat/pages/chat.$id.go
@@ -76,8 +76,11 @@ func ChatRoom(ctx *h.RequestContext) *h.Page {
 	)
 }
 
-var CachedRoomHeader = h.CachedT(time.Hour, func(ctx *h.RequestContext) *h.Element {
-	return roomNameHeader(ctx)
+var CachedRoomHeader = h.CachedPerKeyT(time.Hour, func(ctx *h.RequestContext) (string, h.GetElementFunc) {
+	roomId := chi.URLParam(ctx.Request, "id")
+	return roomId, func() *h.Element {
+		return roomNameHeader(ctx)
+	}
 })
 
 func roomNameHeader(ctx *h.RequestContext) *h.Element {