diff --git a/runtime/doc/vim.1 b/runtime/doc/vim.1
index 5bf0d05..d55c8b3 100644
--- a/runtime/doc/vim.1
+++ b/runtime/doc/vim.1
@@ -186,7 +186,7 @@
 .TP
 \-d
 Start in diff mode.
-There should be two, three or four file name arguments.
+There should between two to eight file name arguments.
 .B Vim
 will open all the files and show differences between them.
 Works like vimdiff(1).