diff --git a/src/corelib/tools/qhashfunctions.h b/src/corelib/tools/qhashfunctions.h
index d013c26d66b..d2d81475663 100644
--- a/src/corelib/tools/qhashfunctions.h
+++ b/src/corelib/tools/qhashfunctions.h
@@ -106,7 +106,8 @@ Q_CORE_EXPORT Q_DECL_PURE_FUNCTION uint qt_hash(QStringView key, uint chained =
 
 Q_DECL_CONST_FUNCTION inline uint qHash(std::nullptr_t, uint seed = 0) Q_DECL_NOTHROW
 {
-    return qHash(reinterpret_cast<quintptr>(nullptr), seed);
+    const void *ptr = nullptr; // work-around for MSVC's reinterpret_cast bug
+    return qHash(reinterpret_cast<quintptr>(ptr), seed);
 }
 
 template <class T> inline uint qHash(const T *key, uint seed = 0) Q_DECL_NOTHROW