diff --git a/SuspendResume/SuspendResume_Windows.cpp b/SuspendResume/SuspendResume_Windows.cpp
index 6c01ca06..8d0784b8 100644
--- a/SuspendResume/SuspendResume_Windows.cpp
+++ b/SuspendResume/SuspendResume_Windows.cpp
@@ -24,7 +24,7 @@ SuspendResumeListener::~SuspendResumeListener()
     QCoreApplication::instance()->removeNativeEventFilter(this);
 }
 
-bool SuspendResumeListener::nativeEventFilter(const QByteArray &event_type, void *message, long *result)
+bool SuspendResumeListener::nativeEventFilter(const QByteArray &event_type, void *message, NEFResultType *result)
 {
     (void)result;
     if(event_type == "windows_generic_MSG")
diff --git a/SuspendResume/SuspendResume_Windows.h b/SuspendResume/SuspendResume_Windows.h
index 2c88fb6c..fd490773 100644
--- a/SuspendResume/SuspendResume_Windows.h
+++ b/SuspendResume/SuspendResume_Windows.h
@@ -15,6 +15,12 @@
 #include <QByteArray>
 #include "SuspendResume.h"
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+#define NEFResultType long
+#else
+#define NEFResultType qintptr
+#endif
+
 class SuspendResumeListener : public SuspendResumeListenerBase, private QAbstractNativeEventFilter
 {
 protected:
@@ -22,5 +28,5 @@ protected:
     virtual ~SuspendResumeListener();
 
 private:
-    bool nativeEventFilter(const QByteArray &event_type, void *message, long *result);
+    bool nativeEventFilter(const QByteArray &event_type, void *message, NEFResultType *result);
 };