diff --git a/test/src/buffer-tests.el b/test/src/buffer-tests.el
index 20f85c6c93e..11f842e8fe0 100644
--- a/test/src/buffer-tests.el
+++ b/test/src/buffer-tests.el
@@ -1345,8 +1345,8 @@ with parameters from the *Messages* buffer modification."
             (add-hook 'kill-buffer-hook kbh nil t)
             (add-hook 'kill-buffer-query-functions kbqf nil t)
             (kill-buffer))
-          (with-temp-buffer)
-          (with-output-to-string)
+          (with-temp-buffer (ignore))
+          (with-output-to-string (ignore))
           (should-not run-bluh)
           (should-not run-kbh)
           (should-not run-kbqf)