diff --git a/include/boost/python/class.hpp b/include/boost/python/class.hpp
index 31805a34..659f7fa7 100644
--- a/include/boost/python/class.hpp
+++ b/include/boost/python/class.hpp
@@ -562,7 +562,7 @@ class class_ : public objects::class_base
     template <class Fn, class Helper>
     inline void def_default(
         char const* name
-        , Fn fn
+        , Fn
         , Helper const& helper
         , mpl::bool_<true>)
     {
diff --git a/include/boost/python/detail/caller.hpp b/include/boost/python/detail/caller.hpp
index 56130982..b02f95e6 100644
--- a/include/boost/python/detail/caller.hpp
+++ b/include/boost/python/detail/caller.hpp
@@ -83,7 +83,7 @@ inline ResultConverter create_result_converter(
     
 template <class ArgPackage, class ResultConverter>
 inline ResultConverter create_result_converter(
-    ArgPackage const& args_
+    ArgPackage const&
   , ResultConverter*
   , ...
 )