diff --git a/Modules/_gdbmmodule.c b/Modules/_gdbmmodule.c
index abc8837..b253e20 100644
--- a/Modules/_gdbmmodule.c
+++ b/Modules/_gdbmmodule.c
@@ -511,17 +511,28 @@
     { 0, 0 },
 };
 
+
+static struct PyModuleDef _gdbmmodule = {
+	PyModuleDef_HEAD_INIT,
+	"_gdbm",
+	gdbmmodule__doc__,
+	-1,
+	dbmmodule_methods,
+	NULL,
+	NULL,
+	NULL,
+	NULL
+};
+
 PyMODINIT_FUNC
-init_gdbm(void) {
+PyInit__gdbm(void) {
     PyObject *m, *d, *s;
 
     if (PyType_Ready(&Dbmtype) < 0)
-	    return;
-    m = Py_InitModule4("_gdbm", dbmmodule_methods,
-                       gdbmmodule__doc__, (PyObject *)NULL,
-                       PYTHON_API_VERSION);
+	    return NULL;
+    m = PyModule_Create(&_gdbmmodule);
     if (m == NULL)
-	return;
+	return NULL;
     d = PyModule_GetDict(m);
     DbmError = PyErr_NewException("_gdbm.error", PyExc_IOError, NULL);
     if (DbmError != NULL) {
@@ -530,4 +541,5 @@
         PyDict_SetItemString(d, "open_flags", s);
         Py_DECREF(s);
     }
+    return m;
 }