diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index e924e8d..0d0efc9 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -2965,7 +2965,7 @@
 		new = PyBytes_FromStringAndSize(NULL, view.len);
 		if (!new)
 			goto fail;
-		// XXX(brett.cannon): Better way to get to internal buffer?
+		/* XXX(brett.cannon): Better way to get to internal buffer? */
 		if (PyBuffer_ToContiguous(((PyBytesObject *)new)->ob_sval,
 					  &view, view.len, 'C') < 0)
 			goto fail;