diff --git a/vars/debian.yml b/vars/debian.yml
index 43e08fdb..d42f472f 100644
--- a/vars/debian.yml
+++ b/vars/debian.yml
@@ -40,6 +40,7 @@ _lxc_cache_distro_packages:
   - locales
   - netbase
   - openssh-server
+  - procps             # provides sysctl which is a requirement
   - python3
   - libpython3.7
   - rsync              # os_keystone runs serial=1 and uses rsync before the distro packages have been installed on all keystone targets