diff --git a/apps/openmw/mwrender/animation.hpp b/apps/openmw/mwrender/animation.hpp
index 5aaa4071b..b1c34576b 100644
--- a/apps/openmw/mwrender/animation.hpp
+++ b/apps/openmw/mwrender/animation.hpp
@@ -61,6 +61,9 @@ public:
 
 private:
     osg::ref_ptr<osg::Node> mNode;
+
+    void operator= (const PartHolder&);
+    PartHolder(const PartHolder&);
 };
 typedef boost::shared_ptr<PartHolder> PartHolderPtr;