Fixes #26611

Change-Id: I111152c7b1156a461c9ddeaf16d2fe7a2d5a00c1
GitHub-Last-Rev: 72090d539b5601b8c585628a11a99b03103d5a75
GitHub-Pull-Request: golang/go#26724
Reviewed-on: https://go-review.googlesource.com/126935Reviewed-by: Ian Lance Taylor <iant@golang.org>