diff --git a/runtime/doc/os_unix.txt b/runtime/doc/os_unix.txt
index 8050422..4b69af5 100644
--- a/runtime/doc/os_unix.txt
+++ b/runtime/doc/os_unix.txt
@@ -1,4 +1,4 @@
-*os_unix.txt*   For Vim version 8.0.  Last change: 2005 Mar 29
+*os_unix.txt*   For Vim version 8.1.  Last change: 2005 Mar 29
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar