diff --git a/src/widgets/styles/qwindowsstyle.cpp b/src/widgets/styles/qwindowsstyle.cpp
index 1d5934e3f7..c13f6e637d 100644
--- a/src/widgets/styles/qwindowsstyle.cpp
+++ b/src/widgets/styles/qwindowsstyle.cpp
@@ -84,6 +84,7 @@
 #include <qpa/qplatformscreen.h>
 #include <private/qguiapplication_p.h>
 #include <private/qhighdpiscaling_p.h>
+#include <private/qwidget_p.h>
 
 #include <private/qstylehelper_p.h>
 #if QT_CONFIG(animation)
diff --git a/src/widgets/widgets/qmdisubwindow.cpp b/src/widgets/widgets/qmdisubwindow.cpp
index 77692930fc..474cce983c 100644
--- a/src/widgets/widgets/qmdisubwindow.cpp
+++ b/src/widgets/widgets/qmdisubwindow.cpp
@@ -1986,7 +1986,7 @@ void QMdiSubWindowPrivate::updateActions()
     for (int i = 0; i < NumWindowStateActions; ++i)
         setVisible(WindowStateAction(i), false);
 
-#ifdef Q_OS_MACOS
+#if defined(Q_OS_MACOS) && QT_CONFIG(action)
     if (q_func()->style()->inherits("QMacStyle"))
         for (int i = 0; i < NumWindowStateActions; ++i)
             if (QAction *action = actions[i])