diff --git a/qgroundcontrol.pro b/qgroundcontrol.pro
index b7fbd30..f5102c5 100644
--- a/qgroundcontrol.pro
+++ b/qgroundcontrol.pro
@@ -130,6 +130,7 @@ MacBuild {
     CONFIG += x86_64
     CONFIG -= x86
     QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.6
+    QMAKE_MAC_SDK = macosx10.9
     ICON = $$BASEDIR/files/images/icons/macx.icns
     QT += quickwidgets
 }