diff --git a/src/corelib/thread/qmutex.h b/src/corelib/thread/qmutex.h
index ce7b5275ac2..ab531ef70e9 100644
--- a/src/corelib/thread/qmutex.h
+++ b/src/corelib/thread/qmutex.h
@@ -19,7 +19,7 @@ QT_BEGIN_NAMESPACE
 
 #if QT_CONFIG(thread) || defined(Q_CLANG_QDOC)
 
-#ifdef Q_OS_LINUX
+#if defined(Q_OS_LINUX) || defined(Q_OS_WIN) // these platforms use futex
 # define QT_MUTEX_LOCK_NOEXCEPT noexcept
 #else
 # define QT_MUTEX_LOCK_NOEXCEPT