diff --git a/src/dict.cpp b/src/dict.cpp
index c8829505..6cd72c27 100644
--- a/src/dict.cpp
+++ b/src/dict.cpp
@@ -24,11 +24,11 @@ namespace
   }
 }
 
-BOOST_PYTHON_DECL detail::new_reference dict::call(object const& arg)
+BOOST_PYTHON_DECL detail::new_reference dict::call(object const& arg_)
 {
     return (detail::new_reference)PyObject_CallFunction(
         (PyObject*)&PyDict_Type, "(O)", 
-        arg.ptr());
+        arg_.ptr());
 }
 
 BOOST_PYTHON_DECL dict::dict()
diff --git a/src/list.cpp b/src/list.cpp
index 484ae121..ee8bceb3 100644
--- a/src/list.cpp
+++ b/src/list.cpp
@@ -7,13 +7,13 @@
 
 namespace boost { namespace python { 
 
-BOOST_PYTHON_DECL detail::new_non_null_reference list::call(object const& arg)
+BOOST_PYTHON_DECL detail::new_non_null_reference list::call(object const& arg_)
 {
     return (detail::new_non_null_reference)
         (expect_non_null)(
             PyObject_CallFunction(
                 (PyObject*)&PyList_Type, "(O)", 
-                arg.ptr()));
+                arg_.ptr()));
 }
 
 BOOST_PYTHON_DECL list::list()
diff --git a/src/long.cpp b/src/long.cpp
index 43d4526d..2cf98610 100644
--- a/src/long.cpp
+++ b/src/long.cpp
@@ -7,18 +7,18 @@
 
 namespace boost { namespace python { 
 
-BOOST_PYTHON_DECL detail::new_non_null_reference long_::call(object const& arg)
+BOOST_PYTHON_DECL detail::new_non_null_reference long_::call(object const& arg_)
 {
     return (detail::new_non_null_reference)PyObject_CallFunction(
         (PyObject*)&PyLong_Type, "(O)", 
-        arg.ptr());
+        arg_.ptr());
 }
 
-BOOST_PYTHON_DECL detail::new_non_null_reference long_::call(object const& arg, object const& base)
+BOOST_PYTHON_DECL detail::new_non_null_reference long_::call(object const& arg_, object const& base)
 {
     return (detail::new_non_null_reference)PyObject_CallFunction(
         (PyObject*)&PyLong_Type, "(OO)", 
-        arg.ptr(), base.ptr());
+        arg_.ptr(), base.ptr());
 }
 
 BOOST_PYTHON_DECL long_::long_()
diff --git a/src/str.cpp b/src/str.cpp
index fc045d9f..12031548 100644
--- a/src/str.cpp
+++ b/src/str.cpp
@@ -3,11 +3,11 @@
 
 namespace boost { namespace python {
 
-BOOST_PYTHON_DECL detail::new_reference str::call(object const& arg)
+BOOST_PYTHON_DECL detail::new_reference str::call(object const& arg_)
 {
     return (detail::new_reference)PyObject_CallFunction(
         (PyObject*)&PyString_Type, "(O)", 
-        arg.ptr());
+        arg_.ptr());
 } 
 
 BOOST_PYTHON_DECL str::str(const char* s)
diff --git a/src/tuple.cpp b/src/tuple.cpp
index 92e0df92..d6a33a56 100644
--- a/src/tuple.cpp
+++ b/src/tuple.cpp
@@ -2,11 +2,11 @@
 
 namespace boost { namespace python {
 
-BOOST_PYTHON_DECL detail::new_reference tuple::call(object const& arg)
+BOOST_PYTHON_DECL detail::new_reference tuple::call(object const& arg_)
 {
     return (detail::new_reference)PyObject_CallFunction(
         (PyObject*)&PyTuple_Type, "(O)", 
-        arg.ptr());
+        arg_.ptr());
 }
     
 BOOST_PYTHON_DECL tuple::tuple()