diff --git a/src/corelib/global/qflags.h b/src/corelib/global/qflags.h
index e9fee5f23e9..6aa6850c69e 100644
--- a/src/corelib/global/qflags.h
+++ b/src/corelib/global/qflags.h
@@ -118,7 +118,7 @@ public:
     Q_DECL_CONSTEXPR inline QFlags &operator=(const QFlags &other);
 #endif
     Q_DECL_CONSTEXPR inline QFlags(Enum flags) Q_DECL_NOTHROW : i(Int(flags)) {}
-    Q_DECL_CONSTEXPR inline QFlags(Zero = Q_NULLPTR) Q_DECL_NOTHROW : i(0) {}
+    Q_DECL_CONSTEXPR inline QFlags(Zero = nullptr) Q_DECL_NOTHROW : i(0) {}
     Q_DECL_CONSTEXPR inline QFlags(QFlag flag) Q_DECL_NOTHROW : i(flag) {}
 
 #ifdef Q_COMPILER_INITIALIZER_LISTS
diff --git a/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp b/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp
index a20024f4684..0319d215a1b 100644
--- a/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp
+++ b/src/corelib/itemmodels/qconcatenatetablesproxymodel.cpp
@@ -55,7 +55,7 @@ public:
 
     struct SourceModelForRowResult
     {
-        SourceModelForRowResult() : sourceModel(Q_NULLPTR), sourceRow(-1) {}
+        SourceModelForRowResult() : sourceModel(nullptr), sourceRow(-1) {}
         QAbstractItemModel *sourceModel;
         int sourceRow;
     };
diff --git a/src/corelib/kernel/qtestsupport_core.cpp b/src/corelib/kernel/qtestsupport_core.cpp
index c54b933f94a..7bd81ed498e 100644
--- a/src/corelib/kernel/qtestsupport_core.cpp
+++ b/src/corelib/kernel/qtestsupport_core.cpp
@@ -102,7 +102,7 @@ Q_CORE_EXPORT void QTest::qWait(int ms)
     int remaining = ms;
     do {
         QCoreApplication::processEvents(QEventLoop::AllEvents, remaining);
-        QCoreApplication::sendPostedEvents(Q_NULLPTR, QEvent::DeferredDelete);
+        QCoreApplication::sendPostedEvents(nullptr, QEvent::DeferredDelete);
         remaining = timer.remainingTime();
         if (remaining <= 0)
             break;