diff --git a/src/testdir/test1.in b/src/testdir/test1.in
index a3b5841..c175fa5 100644
--- a/src/testdir/test1.in
+++ b/src/testdir/test1.in
@@ -15,6 +15,7 @@
 be set like small.vim above.  mbyte.vim is sourced by tests that require the
 +multi_byte feature.
 Similar logic is applied to the +mzscheme feature, using mzscheme.vim.
+Similar logic is applied to the +lua feature, using lua.vim.
 
 STARTTEST
 :" Write a single line to test.out to check if testing works at all.
@@ -28,10 +29,17 @@
 qa!
 :w! mbyte.vim
 :w! mzscheme.vim
+:w! lua.vim
+:"
 :" If +multi_byte feature supported, make mbyte.vim empty.
 :if has("multi_byte") | sp another | w! mbyte.vim | q | endif
+:"
 :" If +mzscheme feature supported, make mzscheme.vim empty.
 :if has("mzscheme") | sp another | w! mzscheme.vim | q | endif
+:"
+:" If +lua feature supported, make lua.vim empty.
+:if has("lua") | sp another | w! lua.vim | q | endif
+:"
 :" If +eval feature supported quit here, leaving tiny.vim and small.vim empty.
 :" Otherwise write small.vim to skip the test.
 :if 1 | q! | endif