diff --git a/include/boost/python/object_core.hpp b/include/boost/python/object_core.hpp
index aa7dfb31..77932634 100755
--- a/include/boost/python/object_core.hpp
+++ b/include/boost/python/object_core.hpp
@@ -75,6 +75,8 @@ namespace api
   //
   BOOST_PYTHON_IS_XXX_DEF(proxy, boost::python::api::proxy, 1)
 
+  template <class T> struct object_initializer;
+  
   class object;
   typedef PyObject* (object::*bool_type)() const;