diff --git a/src/corelib/kernel/qsystemsemaphore_p.h b/src/corelib/kernel/qsystemsemaphore_p.h
index 38a4e7a540..da04b66249 100644
--- a/src/corelib/kernel/qsystemsemaphore_p.h
+++ b/src/corelib/kernel/qsystemsemaphore_p.h
@@ -62,7 +62,6 @@ public:
     int initialValue;
 #ifdef Q_OS_WIN
     Qt::HANDLE semaphore;
-    Qt::HANDLE semaphoreLock;
 #elif defined(QT_POSIX_IPC)
     sem_t *semaphore;
     bool createdSemaphore;