diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9694f98ccb..5d170fe480 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,6 +48,13 @@ include(cmake/target_prepare_qrc.cmake)
 
 include(cmake/options.cmake)
 
+if (NOT DESKTOP_APP_USE_PACKAGED)
+    if (WIN32)
+        set(qt_version 5.15.4)
+    else()
+        set(qt_version 6.3.1)
+    endif()
+endif()
 include(cmake/external/qt/package.cmake)
 
 set(desktop_app_skip_libs
diff --git a/Telegram/configure.py b/Telegram/configure.py
index 22c7d15d72..fe24b92737 100644
--- a/Telegram/configure.py
+++ b/Telegram/configure.py
@@ -60,5 +60,4 @@ if officialTarget != '':
     if arch != '':
         arguments.append(arch)
 
-os.environ["QT"] = "5.15.4" if sys.platform == 'win32' else "6.3.1"
 finish(run_cmake.run(scriptName, arguments))