diff --git a/src/mrw/auto.hxx b/src/mrw/auto.hxx
index 2b5eaf7..3cc210a 100644
--- a/src/mrw/auto.hxx
+++ b/src/mrw/auto.hxx
@@ -82,7 +82,7 @@ namespace mrw {
       typedef mrw::AutoResource<bfd*, int(*)(bfd*), &bfd_close, int> AutoBfd;
       template<class T> class Auto {
         public:
-          typedef mrw::AutoResource<T, void(*)(void*), &free, T, T(0)> Free;
+          typedef mrw::AutoResource<T, void(*)(void*), &free, int, 0> Free;
       };
       @endcode
       @param RESOURCE_TYPE type of the resource to manage
@@ -436,7 +436,7 @@ namespace mrw {
   */
   template<class T> class Auto {
   public:
-      typedef mrw::AutoResource<T, void(*)(void*), &free, T, T(0), void*> Free;
+      typedef mrw::AutoResource<T, void(*)(void*), &free, int, 0, void*> Free;
   private:
     /** @internal
         work around compiler warning: