diff --git a/src/os_mac_conv.c b/src/os_mac_conv.c
index 5fdec88..ad2d58d 100644
--- a/src/os_mac_conv.c
+++ b/src/os_mac_conv.c
@@ -1,4 +1,4 @@
-/* vi:set ts=8 sts=4 sw=4:
+/* vi:set ts=8 sts=4 sw=4 noet:
  *
  * VIM - Vi IMproved	by Bram Moolenaar
  *