diff --git a/src/port/getopt.c b/src/port/getopt.c
index ca49f229e5..52692f63ce 100644
--- a/src/port/getopt.c
+++ b/src/port/getopt.c
@@ -1,4 +1,4 @@
-/* This is used by psql under MS Win */
+/* This is used by psql under Win32 */
 
 /*
  * Copyright (c) 1987, 1993, 1994