diff --git a/Python/ceval.c b/Python/ceval.c
index 6bd2d6bc13d86f..7c6cf83bc9ac01 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -1701,7 +1701,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag)
             PyObject *right = POP();
             PyObject *left = TOP();
             PyObject *sum;
-            /* NOTE(haypo): Please don't try to micro-optimize int+int on
+            /* NOTE(vstinner): Please don't try to micro-optimize int+int on
                CPython using bytecode, it is simply worthless.
                See http://bugs.python.org/issue21955 and
                http://bugs.python.org/issue10044 for the discussion. In short,