1 files changed, 2 insertions, 1 deletions
diff --git a/src/corelib/kernel/qvariant_p.h b/src/corelib/kernel/qvariant_p.h
index 708a427860..a754bc4363 100644
--- a/src/corelib/kernel/qvariant_p.h
+++ b/src/corelib/kernel/qvariant_p.h
@@ -188,7 +188,7 @@ public:
     }
 
     bool delegate(const void*) { return true; }
-
+    bool delegate(const QMetaTypeSwitcher::NotBuiltinType*) { return false; }
 protected:
     const QVariant::Private *m_a;
     const QVariant::Private *m_b;
@@ -282,6 +282,7 @@ public:
     }
     // we need that as sizof(void) is undefined and it is needed in HasIsNullMethod
     bool delegate(const void *) { return m_d->is_null; }
+    bool delegate(const QMetaTypeSwitcher::NotBuiltinType *) { return m_d->is_null; }
 protected:
     const QVariant::Private *m_d;
 };