Fixes #34799

Change-Id: I134b2717fa90c8955902e7eeaaf8510dcc28340e
Reviewed-on: https://go-review.googlesource.com/c/go/+/200760
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>