Fix issue pointed out by @tchajed in...

Fix issue pointed out by @tchajed in !330 (comment 41322)
6 jobs for master in 16 minutes and 56 seconds
Status Job ID Name Coverage
  Build
passed #47061
fp
build-coq.8.10.0

00:10:01

passed #47060
fp-timing
build-coq.8.10.1

00:07:01

passed #47064
fp
build-coq.8.8.2

00:08:46

passed #47063
fp
build-coq.8.9.0

00:09:41

passed #47062
fp
build-coq.8.9.1

00:09:37

passed #47059
fp
build-coq.dev

00:16:56