diff --git a/Objects/moduleobject.c b/Objects/moduleobject.c
index 8124968..e454fcf 100644
--- a/Objects/moduleobject.c
+++ b/Objects/moduleobject.c
@@ -204,8 +204,7 @@
 static int
 module_traverse(PyModuleObject *m, visitproc visit, void *arg)
 {
-	if (m->md_dict != NULL)
-		return visit(m->md_dict, arg);
+	Py_VISIT(m->md_dict);
 	return 0;
 }