diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index deba977f77..77d2c8cbe1 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -1462,6 +1462,7 @@ static void customConstruct(QVariant::Private *d, const void *copy)
     if (size <= sizeof(QVariant::Private::Data)
             && (type.flags() & (QMetaType::MovableType | QMetaType::IsEnumeration))) {
         type.construct(&d->data.ptr, copy);
+        d->is_null = d->data.ptr == nullptr;
         d->is_shared = false;
     } else {
         // Private::Data contains long long, and long double is the biggest standard type.
@@ -1472,6 +1473,7 @@ static void customConstruct(QVariant::Private *d, const void *copy)
         void *data = operator new(offset + size);
         void *ptr = static_cast<char *>(data) + offset;
         type.construct(ptr, copy);
+        d->is_null = ptr == nullptr;
         d->is_shared = true;
         d->data.shared = new (data) QVariant::PrivateShared(ptr);
     }
diff --git a/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp b/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
index 4da34c407e..a9162a6a6f 100644
--- a/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
+++ b/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
@@ -2761,6 +2761,14 @@ void tst_QVariant::qvariant_cast_QObject_derived()
         QCOMPARE(data.value<CustomQObjectDerived *>(), object);
         QCOMPARE(data.value<CustomQObject *>(), object);
     }
+    {
+        QObject *object = new CustomQObjectDerivedNoMetaType(this);
+        QVariant data = QVariant::fromValue(object);
+        QVERIFY(data.canConvert<CustomQObjectDerivedNoMetaType*>());
+        QVERIFY(data.convert(qMetaTypeId<CustomQObjectDerivedNoMetaType*>()));
+        QCOMPARE(data.value<CustomQObjectDerivedNoMetaType*>(), object);
+        QCOMPARE(data.isNull(), false);
+    }
 }
 
 struct QObjectWrapper