diff --git a/src/core/ScreenLockListenerWin.cpp b/src/core/ScreenLockListenerWin.cpp
index a1bf13d4f..80fa32894 100644
--- a/src/core/ScreenLockListenerWin.cpp
+++ b/src/core/ScreenLockListenerWin.cpp
@@ -52,8 +52,8 @@ ScreenLockListenerWin::~ScreenLockListenerWin()
     HWND h= reinterpret_cast<HWND>(static_cast<QWidget*>(parent())->winId());
     WTSUnRegisterSessionNotification(h);
 
-    if (m_powernotificationhandle) {
-        UnregisterPowerSettingNotification(reinterpret_cast<HPOWERNOTIFY>(m_powernotificationhandle));
+    if (m_powerNotificationHandle) {
+        UnregisterPowerSettingNotification(reinterpret_cast<HPOWERNOTIFY>(m_powerNotificationHandle));
     }
 }