diff --git a/src/include/pg_getopt.h b/src/include/pg_getopt.h
index 0b38404ed3b..531c265f7cd 100644
--- a/src/include/pg_getopt.h
+++ b/src/include/pg_getopt.h
@@ -32,8 +32,8 @@ extern int	optopt;
 #endif   /* HAVE_GETOPT_H */
 
 /*
- * Some platforms have optreset but not <getopt.h>.  Cygwin, however,
- * doesn't like this either.
+ * Some platforms have optreset but fail to declare it in <getopt.h>, so cope.
+ * Cygwin, however, doesn't like this either.
  */
 #if defined(HAVE_INT_OPTRESET) && !defined(__CYGWIN__)
 extern int	optreset;