Fixes #35632

Change-Id: I55c3d53c2a6240868ec001866047a15ec8f91809
Reviewed-on: https://go-review.googlesource.com/c/go/+/207603
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>