diff --git a/Maintenance/infrastructure/cgal.geometryfactory.com/crontab b/Maintenance/infrastructure/cgal.geometryfactory.com/crontab
index 9be766b0091..769c300c7e2 100644
--- a/Maintenance/infrastructure/cgal.geometryfactory.com/crontab
+++ b/Maintenance/infrastructure/cgal.geometryfactory.com/crontab
@@ -39,7 +39,7 @@ LC_CTYPE=en_US.UTF-8
 
 # Launch our  Docker testsuite , at 21:36,
 # after a pull of all new images at 20:23.
-06 20 * * * docker pull -a docker.io/cgal/testsuite-docker
+06 20 * * * docker pull -a docker.io/cgal/testsuite-docker; docker rmi $(docker images | awk '/<none>/ {print $3}')
 36 21 * * * cd /home/lrineau/Git/cgal-testsuite-dockerfiles && time ./test_cgal.py --use-fedora-selinux-policy --force-rm --max-cpus 12 --container-cpus 4 --jobs 5 --upload-results --images $(docker images | grep -v 'centos[67] ' | grep -v 'debian-stable ' | awk '/docker.io\/cgal\/testsuite-docker/ {print $1 ":" $2}' | grep -v CGAL-archlinux-cxx14-testsuite)