diff --git a/src/controllers/FloatingWindow.cpp b/src/controllers/FloatingWindow.cpp
index 34029986..45ea437a 100644
--- a/src/controllers/FloatingWindow.cpp
+++ b/src/controllers/FloatingWindow.cpp
@@ -33,6 +33,13 @@
 #include <QTimer>
 #include <QWindow>
 
+#ifdef Q_OS_WIN
+#define NOMINMAX
+#include <Windows.h>
+#endif
+
+#include <limits>
+
 using namespace KDDockWidgets;
 using namespace KDDockWidgets::Controllers;
 
@@ -335,7 +342,7 @@ Layout *FloatingWindow::layout() const
 
 bool FloatingWindow::isInDragArea(QPoint globalPoint) const
 {
-#ifdef Q_OS_WIN_TODO
+#ifdef Q_OS_WIN
     // A click near the border will still send a Qt::NonClientMousePressEvent. We shouldn't
     // interpret that as a drag, as it's for a native resize.
     // Keep track of how we handled the WM_NCHITTEST
diff --git a/src/controllers/FloatingWindow.h b/src/controllers/FloatingWindow.h
index 206093b9..032afd1c 100644
--- a/src/controllers/FloatingWindow.h
+++ b/src/controllers/FloatingWindow.h
@@ -58,7 +58,7 @@ public:
 
     static void ensureRectIsOnScreen(QRect &geometry);
 
-#ifdef Q_OS_WIN_TODO
+#ifdef Q_OS_WIN
     void setLastHitTest(int hitTest)
     {
         m_lastHitTest = hitTest;
@@ -242,7 +242,7 @@ private:
     KDBindings::ScopedConnection m_visibleWidgetCountConnection;
     QAbstractNativeEventFilter *m_nchittestFilter = nullptr;
     Qt::WindowState windowStateOverride() const;
-#ifdef Q_OS_WIN_TODO
+#ifdef Q_OS_WIN
     int m_lastHitTest = 0;
 #endif
 };