diff --git a/src/testdir/test_balloon.vim b/src/testdir/test_balloon.vim
index 80d5831..3db37a7 100644
--- a/src/testdir/test_balloon.vim
+++ b/src/testdir/test_balloon.vim
@@ -36,6 +36,7 @@
   call TermWait(buf, 50)
   call term_sendkeys(buf, 'll')
   call term_sendkeys(buf, ":call Trigger()\<CR>")
+  sleep 150m " Wait for balloon to show up (100ms balloondelay time)
   call VerifyScreenDump(buf, 'Test_balloon_eval_term_01', {})
 
   " Make sure the balloon still shows after 'updatetime' passed and CursorHold