diff --git a/pkg/zones/ceph_scan.go b/pkg/zones/ceph_scan.go
index 32e3c7f..724e24d 100644
--- a/pkg/zones/ceph_scan.go
+++ b/pkg/zones/ceph_scan.go
@@ -158,6 +158,9 @@ func (m *Zones) scanCephMonitors(_ *ScanOptions) error {
 	}
 
 	if cfg != nil {
+		// store FSID
+		m.CephFSID = cfg.Global.FSID
+
 		// flag monitors based on config
 		todo := newCephScanTODO(cfg)
 		m.ForEachMachine(func(p *Machine) bool {