diff --git a/Telegram/SourceFiles/core/application.cpp b/Telegram/SourceFiles/core/application.cpp
index bd1a17475..d7df2a9e6 100644
--- a/Telegram/SourceFiles/core/application.cpp
+++ b/Telegram/SourceFiles/core/application.cpp
@@ -48,6 +48,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "countries/countries_manager.h"
 #include "iv/iv_delegate_impl.h"
 #include "iv/iv_instance.h"
+#include "iv/iv_data.h"
 #include "lang/lang_file_parser.h"
 #include "lang/lang_translator.h"
 #include "lang/lang_cloud_manager.h"
@@ -336,6 +337,9 @@ void Application::run() {
 	// Create mime database, so it won't be slow later.
 	QMimeDatabase().mimeTypeForName(u"text/plain"_q);
 
+	// Check now to avoid re-entrance later.
+	[[maybe_unused]] const auto ivSupported = Iv::ShowButton();
+
 	_windows.emplace(nullptr, std::make_unique<Window::Controller>());
 	setLastActiveWindow(_windows.front().second.get());
 	_windowInSettings = _lastActivePrimaryWindow = _lastActiveWindow;