diff --git a/main.go b/main.go
index 935f2f9..48ff1e3 100644
--- a/main.go
+++ b/main.go
@@ -377,6 +377,7 @@ func present(w http.ResponseWriter, r *http.Request) {
 			delete(room.present, controlChan)
 			close(controlChan)
 			mu.Unlock()
+			return
 
 		case <-ticker.C:
 			writePresentHeartbeat(w, flusher)