Fixes #27841

Change-Id: Ifcfd938aff8680cf7b44dfc09fde01d6105345a0
Reviewed-on: https://go-review.googlesource.com/c/go/+/198257
Run-TryBot: Dan Peterson <dpiddy@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>