diff --git a/devtools/gerrit/kube/gerrit.libsonnet b/devtools/gerrit/kube/gerrit.libsonnet
index 2d10f32..7fb4171 100644
--- a/devtools/gerrit/kube/gerrit.libsonnet
+++ b/devtools/gerrit/kube/gerrit.libsonnet
@@ -141,10 +141,8 @@
     volumes: {
         [name]: kube.PersistentVolumeClaim(gerrit.name(name)) {
             metadata+: gerrit.metadata("storage"),
-            storage: cfg.storageSize[name],
-            spec+: {
-                storageClassName: cfg.storageClassName,
-            },
+            storage:: cfg.storageSize[name],
+            storageClass:: cfg.storageClassName,
         }
         for name in ["etc", "git", "index", "cache", "db"]
     },