diff --git a/Objects/genobject.c b/Objects/genobject.c
index d2ef508..b1c51a8 100644
--- a/Objects/genobject.c
+++ b/Objects/genobject.c
@@ -285,10 +285,10 @@
 gen_repr(PyGenObject *gen)
 {
 	char *code_name;
-	code_name = PyString_AsString(((PyCodeObject *)gen->gi_code)->co_name);
+	code_name = PyBytes_AsString(((PyCodeObject *)gen->gi_code)->co_name);
 	if (code_name == NULL)
 		return NULL;
-	return PyString_FromFormat("<generator object %.200s at %p>",
+	return PyBytes_FromFormat("<generator object %.200s at %p>",
 				   code_name, gen);
 }