diff --git a/telegram-desktop.changes b/telegram-desktop.changes
index 1f444a7..313402f 100644
--- a/telegram-desktop.changes
+++ b/telegram-desktop.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Sep 20 15:44:53 UTC 2022 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Pass -DQT_VERSION_MAJOR=6 to cmake when building Qt6 flavor: make
+  build stable even if some Qt5 libs are benig found.
+
 -------------------------------------------------------------------
 Sun Aug 28 04:50:11 UTC 2022 - Xu Zhao <i@xuzhao.net>
 
diff --git a/telegram-desktop.spec b/telegram-desktop.spec
index 181c3a0..e017d82 100644
--- a/telegram-desktop.spec
+++ b/telegram-desktop.spec
@@ -257,6 +257,7 @@ cd %{_builddir}/tdesktop-%{version}-full
       -DCMAKE_BUILD_TYPE=Release \
 %if %{qt_major_version} == 6
       -DDESKTOP_APP_QT6=ON \
+      -DQT_VERSION_MAJOR=6 \
 %else
       -DDESKTOP_APP_QT6=OFF \
       -DDESKTOP_APP_DISABLE_WAYLAND_INTEGRATION=ON \