diff --git a/src/testdir/test72.in b/src/testdir/test72.in
index b6c6bfa..ada2654 100644
--- a/src/testdir/test72.in
+++ b/src/testdir/test72.in
@@ -6,7 +6,7 @@
 :so small.vim
 :"
 :" Test 'undofile': first a simple one-line change.
-:set nocp ul=100 undofile
+:set nocp ul=100 undofile nomore
 :e! Xtestfile
 ggdGithis is one line:set ul=100
 :s/one/ONE/