diff --git a/ceph_defaults/defaults/main.yml b/ceph_defaults/defaults/main.yml
index ba8009b..d532042 100644
--- a/ceph_defaults/defaults/main.yml
+++ b/ceph_defaults/defaults/main.yml
@@ -20,4 +20,5 @@ ceph_client_pkgs:
 infra_pkgs:
   - chrony
   - podman
+  - sos
 client_group: clients