diff --git a/include/chaiscript/chaiscript_threading.hpp b/include/chaiscript/chaiscript_threading.hpp
index 4568116..15b4a64 100644
--- a/include/chaiscript/chaiscript_threading.hpp
+++ b/include/chaiscript/chaiscript_threading.hpp
@@ -158,7 +158,7 @@ namespace chaiscript
 
               if (itr != m_instances.end()) { return itr->second; }
 
-              std::shared_ptr<T> new_instance(new T());
+              std::shared_ptr<T> new_instance(std::make_shared<T>());
 
               m_instances.insert(std::make_pair(std::this_thread::get_id(), new_instance));
 
diff --git a/include/chaiscript/dispatchkit/proxy_constructors.hpp b/include/chaiscript/dispatchkit/proxy_constructors.hpp
index f354ae5..2866d97 100644
--- a/include/chaiscript/dispatchkit/proxy_constructors.hpp
+++ b/include/chaiscript/dispatchkit/proxy_constructors.hpp
@@ -30,7 +30,7 @@ namespace chaiscript
         Proxy_Function build_constructor_(Class (*)(Params...))
         {
           typedef std::shared_ptr<Class> (sig)(Params...);
-          return Proxy_Function(new Proxy_Function_Impl<sig>(std::function<sig>(&(constructor_<Class, Params...>))));
+          return Proxy_Function(static_cast<Proxy_Function_Impl_Base *>(new Proxy_Function_Impl<sig>(std::function<sig>(&(constructor_<Class, Params...>)))));
         }
     }
   }
diff --git a/include/chaiscript/dispatchkit/register_function.hpp b/include/chaiscript/dispatchkit/register_function.hpp
index 1ed8ebf..f476a25 100644
--- a/include/chaiscript/dispatchkit/register_function.hpp
+++ b/include/chaiscript/dispatchkit/register_function.hpp
@@ -61,7 +61,7 @@ namespace chaiscript
             {
               /// \todo is it possible to reduce the number of templates generated here?
               return Proxy_Function(
-                  new Proxy_Function_Impl<typename FunctionSignature<decltype(to_function(t)) >::Signature>(to_function(t)));
+                  static_cast<dispatch::Proxy_Function_Impl_Base *>(new Proxy_Function_Impl<typename FunctionSignature<decltype(to_function(t)) >::Signature>(to_function(t))));
             }
         };
 
@@ -118,7 +118,7 @@ namespace chaiscript
   template<typename T>
     Proxy_Function fun(const std::function<T> &f)
     {
-      return Proxy_Function(new dispatch::Proxy_Function_Impl<T>(f));
+      return Proxy_Function(static_cast<dispatch::Proxy_Function_Impl_Base *>(new dispatch::Proxy_Function_Impl<T>(f)));
     }