diff --git a/step.yaml b/step.yaml
index 07312cbf3500fdb08b73b842e0257437775f4fd8..6ce40f6cb0b3406a13b0bc75767ef8c6b54704c8 100644
--- a/step.yaml
+++ b/step.yaml
@@ -10,7 +10,7 @@ configInfo:
   - name: storageSpec.volumeClaimTemplate.spec.storageClassName
     text: 存储类
     type: storage
-    value: ["rook-ceph-block"]
+    value: "rook-ceph-block"
     storage: "4Gi"
     hostpath: "/data/path"
   - name: storageSpec.volumeClaimTemplate.spec.resources