diff --git a/Telegram/SourceFiles/core/launcher.cpp b/Telegram/SourceFiles/core/launcher.cpp
index 3efa53eba..f0273bfdd 100644
--- a/Telegram/SourceFiles/core/launcher.cpp
+++ b/Telegram/SourceFiles/core/launcher.cpp
@@ -241,7 +241,9 @@ void Launcher::init() {
 
 	QApplication::setApplicationName(qsl("TelegramDesktop"));
 
-#if defined(Q_OS_LINUX) && QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
+#ifdef TDESKTOP_FLATPAK_BUILD
+	QApplication::setDesktopFileName(qsl("org.telegram.desktop.desktop"));
+#elif defined(Q_OS_LINUX) && QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
 	QApplication::setDesktopFileName(qsl("telegramdesktop.desktop"));
 #endif
 #ifndef OS_MAC_OLD