fix function name
diff --git a/Doc/extending/extending.rst b/Doc/extending/extending.rst
index ed86073..b035d94 100644
--- a/Doc/extending/extending.rst
+++ b/Doc/extending/extending.rst
@@ -1262,7 +1262,7 @@
 :cfunc:`import_spam` in its initialization function::
 
    PyMODINIT_FUNC
-   initclient(void)
+   PyInit_client(void)
    {
        PyObject *m;