diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -1276,17 +1276,17 @@ Load an executable (usually a DLL), and 
 The handle may be used to locate exported functions in this\n\
 module.\n";
 static PyObject *load_library(PyObject *self, PyObject *args)
 {
     TCHAR *name;
     PyObject *nameobj;
     PyObject *ignored;
     HMODULE hMod;
-    if (!PyArg_ParseTuple(args, "S|O:LoadLibrary", &nameobj, &ignored))
+    if (!PyArg_ParseTuple(args, "O|O:LoadLibrary", &nameobj, &ignored))
         return NULL;
 #ifdef _UNICODE
     name = alloca((PyString_Size(nameobj) + 1) * sizeof(WCHAR));
     if (!name) {
         PyErr_NoMemory();
         return NULL;
     }