diff --git a/clusters/cl01tl/monitoring/kube-prometheus-stack/values.yaml b/clusters/cl01tl/monitoring/kube-prometheus-stack/values.yaml
index de7f45c43..4c8198573 100644
--- a/clusters/cl01tl/monitoring/kube-prometheus-stack/values.yaml
+++ b/clusters/cl01tl/monitoring/kube-prometheus-stack/values.yaml
@@ -152,6 +152,11 @@ kube-prometheus-stack:
             resources:
               requests:
                 storage: 100Gi
+      volumes:
+        - name: migration
+          persistentVolumeClaim:
+            claimName: kube-prometheus-stack-iscsi-storage
       volumeMounts:
-        - name:  kube-prometheus-stack-iscsi-storage
+        - name: migration
           mountPath: /migration
+          readOnly: false