diff --git a/.github/actions/setup-greptimedb-cluster/with-observability.yaml b/.github/actions/setup-greptimedb-cluster/with-observability.yaml
index 581f60dea60..98659a89941 100644
--- a/.github/actions/setup-greptimedb-cluster/with-observability.yaml
+++ b/.github/actions/setup-greptimedb-cluster/with-observability.yaml
@@ -15,9 +15,9 @@ monitoring:
           limits:
             cpu: 500m
             memory: 256Mi
-      datanodeStorage:
-        fs:
-          storageSize: 5Gi
+    datanodeStorage:
+      fs:
+        storageSize: 5Gi
   vector:
     resources:
       requests: