diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 342e7ee..849dd5c 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -11023,7 +11023,7 @@ replace(PyObject *self, PyObject *str1,
             release1 = 1;
         }
         /* new_size = PyUnicode_GET_LENGTH(self) + n * (PyUnicode_GET_LENGTH(str2) -
-           PyUnicode_GET_LENGTH(str1))); */
+           PyUnicode_GET_LENGTH(str1)); */
         if (len1 < len2 && len2 - len1 > (PY_SSIZE_T_MAX - slen) / n) {
                 PyErr_SetString(PyExc_OverflowError,
                                 "replace string is too long");