Fixes #26758

Change-Id: If08bafc85c353dfbb546107b75c8c884ab9c88e4
Reviewed-on: https://go-review.googlesource.com/127475
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>