diff --git a/runtime/doc/pi_zip.txt b/runtime/doc/pi_zip.txt
index c5fa391..3517735 100644
--- a/runtime/doc/pi_zip.txt
+++ b/runtime/doc/pi_zip.txt
@@ -149,4 +149,4 @@
    v1 Sep 15, 2005 * Initial release, had browsing, reading, and writing
 
 ==============================================================================
-vim:tw=78:ts=8:ft=help:fdm=marker
+vim:tw=78:ts=8:noet:ft=help:fdm=marker