diff --git a/test/old/testdir/setup.vim b/test/old/testdir/setup.vim
index 86230ae6a7..d81a8f61cf 100644
--- a/test/old/testdir/setup.vim
+++ b/test/old/testdir/setup.vim
@@ -114,6 +114,10 @@ endif
 " defaults before we get here, and test_mksession checks that.
 let $ORIGHOME = $HOME
 
+if !exists('$XDG_CONFIG_HOME')
+  let $XDG_CONFIG_HOME = $HOME .. '/.config'
+endif
+
 " Make sure $HOME does not get read or written.
 let $HOME = expand(getcwd() . '/XfakeHOME')
 if !isdirectory($HOME)
diff --git a/test/old/testdir/test_mksession.vim b/test/old/testdir/test_mksession.vim
index 33de56baca..1084204970 100644
--- a/test/old/testdir/test_mksession.vim
+++ b/test/old/testdir/test_mksession.vim
@@ -1205,7 +1205,10 @@ func Test_mkview_default_home()
     " use escape() to handle backslash path separators
     call assert_match('^' .. escape($ORIGHOME, '\') .. '/vimfiles', &viewdir)
   elseif has('unix')
-    call assert_match('^' .. $ORIGHOME .. '/.vim', &viewdir)
+    call assert_match(
+          \ '^' .. $ORIGHOME .. '/.vim\|' ..
+          \ '^' .. $XDG_CONFIG_HOME .. '/vim'
+          \ , &viewdir)
   elseif has('amiga')
     call assert_match('^home:vimfiles', &viewdir)
   elseif has('mac')