diff --git a/src/corelib/kernel/qproperty.h b/src/corelib/kernel/qproperty.h
index 7fd8c2e17e..5e1d8ec2f6 100644
--- a/src/corelib/kernel/qproperty.h
+++ b/src/corelib/kernel/qproperty.h
@@ -137,6 +137,8 @@ public:
 
     QMetaType valueMetaType() const;
 
+    void setDirty(bool dirty = true);
+
 private:
     explicit QUntypedPropertyBinding(const QPropertyBindingPrivatePtr &priv);
     friend class QtPrivate::QPropertyBase;
diff --git a/src/corelib/kernel/qpropertybinding.cpp b/src/corelib/kernel/qpropertybinding.cpp
index fb372fcdfc..78d24cbdc1 100644
--- a/src/corelib/kernel/qpropertybinding.cpp
+++ b/src/corelib/kernel/qpropertybinding.cpp
@@ -162,4 +162,11 @@ QMetaType QUntypedPropertyBinding::valueMetaType() const
     return d->metaType;
 }
 
+void QUntypedPropertyBinding::setDirty(bool dirty)
+{
+    if (!d)
+        return;
+    d->dirty = dirty;
+}
+
 QT_END_NAMESPACE