diff --git a/src/Base/Handle.h b/src/Base/Handle.h
index 8b63795188..275f59a955 100644
--- a/src/Base/Handle.h
+++ b/src/Base/Handle.h
@@ -171,6 +171,9 @@ public:
     int getRefCount(void) const;
     const Handled& operator = (const Handled&);
 
+private:
+    Handled(const Handled&);
+
 private:
     QAtomicInt* _lRefCount;
 };