1 files changed, 1 insertions, 4 deletions
diff --git a/src/declarative/qml/qdeclarativeengine.cpp b/src/declarative/qml/qdeclarativeengine.cpp
index 9f2f4a0a09..2b77fe536d 100644
--- a/src/declarative/qml/qdeclarativeengine.cpp
+++ b/src/declarative/qml/qdeclarativeengine.cpp
@@ -1575,10 +1575,7 @@ QDeclarativePropertyCache *QDeclarativeEnginePrivate::createCache(const QMetaObj
         return rv;
     } else {
         QDeclarativePropertyCache *super = cache(mo->superClass());
-        QDeclarativePropertyCache *rv = super->copy(mo->propertyCount() + mo->methodCount() - 
-                                                    mo->superClass()->propertyCount() - 
-                                                    mo->superClass()->methodCount());
-        rv->append(q, mo);
+        QDeclarativePropertyCache *rv = super->copyAndAppend(q, mo);
         propertyCache.insert(mo, rv);
         return rv;
     }