diff --git a/include/loki/SmartPtr.h b/include/loki/SmartPtr.h
index 6b3325a..80d230f 100644
--- a/include/loki/SmartPtr.h
+++ b/include/loki/SmartPtr.h
@@ -728,6 +728,14 @@ namespace Loki
         DestructiveCopy(const DestructiveCopy<P1>&)
         {}
 
+        template <class P1>
+        static P Clone( const P1 & val )
+        {
+            P result(val);
+            const_cast< P1 & >( val ) = P1();
+            return result;
+        }
+
         template <class P1>
         static P Clone(P1& val)
         {