Fixes unintended consequence of CL 76393

Change-Id: I7e4644a0bc6a8b37eb41196687d9661f902ba183
Reviewed-on: https://go-review.googlesource.com/76890
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>