diff --git a/include/eigenpy/fwd.hpp b/include/eigenpy/fwd.hpp
index cb572bc477be0600d7c99e4af3843b4dbe45ca66..44c74cd0cb47fed514456cc4a7b23c58f267c273 100644
--- a/include/eigenpy/fwd.hpp
+++ b/include/eigenpy/fwd.hpp
@@ -93,6 +93,14 @@
 
 #include "eigenpy/expose.hpp"
 
+#ifdef EIGENPY_WITH_CXX11_SUPPORT
+#include <memory>
+#define EIGENPY_CLASS_HOLDER_TYPE(T) ::std::shared_ptr<T>
+#else
+#include <boost/shared_ptr.hpp>
+#define EIGENPY_CLASS_HOLDER_TYPE(T) ::boost::shared_ptr<T>
+#endif
+
 namespace eigenpy {
 template <typename MatType,
           typename Scalar =