diff --git a/src/testdir/test_popup.vim b/src/testdir/test_popup.vim
index 89cdf0e..cb61be2 100644
--- a/src/testdir/test_popup.vim
+++ b/src/testdir/test_popup.vim
@@ -247,6 +247,10 @@
   iunmap <F5>
 endfunc
 
+" TODO: Fix what breaks after this line.
+" - Do not use "q!", it may exit Vim if there is an error
+finish
+
 func Test_noinsert_complete()
   function! s:complTest1() abort
     call complete(1, ['source', 'soundfold'])