diff --git a/Telegram/SourceFiles/boxes/send_files_box.h b/Telegram/SourceFiles/boxes/send_files_box.h
index 0e47358424..5582f6ea2c 100644
--- a/Telegram/SourceFiles/boxes/send_files_box.h
+++ b/Telegram/SourceFiles/boxes/send_files_box.h
@@ -307,7 +307,7 @@ private:
 
 	object_ptr<Ui::ScrollArea> _scroll;
 	QPointer<Ui::VerticalLayout> _inner;
-	std::vector<Block> _blocks;
+	std::deque<Block> _blocks;
 	Fn<void()> _whenReadySend;
 	bool _preparing = false;