diff --git a/test/old/testdir/test_sort.vim b/test/old/testdir/test_sort.vim
index 2d03dd2f2a..d8f6b2a64f 100644
--- a/test/old/testdir/test_sort.vim
+++ b/test/old/testdir/test_sort.vim
@@ -1504,7 +1504,7 @@ func Test_sort_followed_by_cmd()
   call setline(1, ['3b', '1c', '2a'])
   %sort /\d\+/ " sort alphabetically
   call assert_equal(['2a', '3b', '1c'], getline(1, '$'))
-  close!
+  bw!
 endfunc
 
 " Test for :sort using last search pattern
@@ -1514,7 +1514,7 @@ func Test_sort_last_search_pat()
   call setline(1, ['3b', '1c', '2a'])
   sort //
   call assert_equal(['2a', '3b', '1c'], getline(1, '$'))
-  close!
+  bw!
 endfunc
 
 " Test for :sort with no last search pattern
@@ -1544,7 +1544,7 @@ func Test_sort_with_marks()
   call assert_equal(2, line("'a"))
   call assert_equal(3, line("'b"))
   call assert_equal(1, line("'c"))
-  close!
+  bw!
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab