diff --git a/Telegram/SourceFiles/core/observer.h b/Telegram/SourceFiles/core/observer.h
index fc4eb788d..bbde082a2 100644
--- a/Telegram/SourceFiles/core/observer.h
+++ b/Telegram/SourceFiles/core/observer.h
@@ -150,7 +150,8 @@ public:
 	}
 	void notify(const EventType &event, bool sync = false) {
 		if (this->_data) {
-			this->_data->notify(EventType(event), sync);
+			auto event_copy = event;
+			this->_data->notify(std::move(event_copy), sync);
 		}
 	}