diff --git a/src/testdir/test_search.vim b/src/testdir/test_search.vim
index ca06c34..e39458f 100644
--- a/src/testdir/test_search.vim
+++ b/src/testdir/test_search.vim
@@ -290,6 +290,9 @@
   new
   call setline(1, ['other code', 'here [', ' [', ' " cursor here', ' ]]'])
 
+  " should not give an error for using "42"
+  call assert_equal(0, searchpair('a', 'b', 'c', '', 42))
+
   4
   call assert_equal(3, searchpair('\[', '', ']', 'bW'))
   call assert_equal([0, 3, 2, 0], getpos('.'))