diff --git a/pkg/zones/ceph_scan.go b/pkg/zones/ceph_scan.go
index 4e75a9d..3149344 100644
--- a/pkg/zones/ceph_scan.go
+++ b/pkg/zones/ceph_scan.go
@@ -157,6 +157,9 @@ func (m *Zones) scanCephMonitors(_ *ScanOptions) error {
 		return err
 	}
 
+	// store FSID
+	m.CephFSID = cfg.Global.FSID
+
 	// flag monitors based on config
 	todo := newCephScanTODO(cfg)
 	m.ForEachMachine(func(p *Machine) bool {