diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-debug-minecraft/mcserver--debug-s1/stateful-set.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-debug-minecraft/mcserver--debug-s1/stateful-set.yaml
index 6757ed557..018e047a4 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-debug-minecraft/mcserver--debug-s1/stateful-set.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-debug-minecraft/mcserver--debug-s1/stateful-set.yaml
@@ -425,7 +425,7 @@ spec:
           iscsi:
             targetPortal: 192.168.16.240
             iqn: iqn.2000-01.com.synology:seichi-cloud.k8s-static-pv--minecraft-server-data-mcserver--debug-s1-0
-            lun: 0
+            lun: 1
             readOnly: false
             fsType: ext4
             chapAuthDiscovery: false