diff --git a/Telegram/SourceFiles/pspecific_linux.cpp b/Telegram/SourceFiles/pspecific_linux.cpp
index c9213d98f..fb89852fe 100644
--- a/Telegram/SourceFiles/pspecific_linux.cpp
+++ b/Telegram/SourceFiles/pspecific_linux.cpp
@@ -1196,6 +1196,7 @@ void psRegisterCustomScheme() {
             s << "Exec=" << escapeShell(cExeDir() + cExeName()) << " -- %u\n";
             s << "Icon=" << icon << "\n";
             s << "Terminal=false\n";
+            s << "StartupWMClass=Telegram";
             s << "Type=Application\n";
             s << "Categories=Network;\n";
             s << "MimeType=application/x-xdg-protocol-tg;x-scheme-handler/tg;\n";