diff --git a/helmchart/single-sign-on/templates/pvc-userbackend.yaml b/helmchart/single-sign-on/templates/pvc-userbackend.yaml
index 98cbdf9ba691a07745618ef0113bd9415b1f6554..484d7ca8cc3d392d66eab626b8cffc5b28beb2e9 100644
--- a/helmchart/single-sign-on/templates/pvc-userbackend.yaml
+++ b/helmchart/single-sign-on/templates/pvc-userbackend.yaml
@@ -12,14 +12,12 @@ metadata:
 {{- end }}
 spec:
   accessModes:
-    - readWrtiteOnce
+    - ReadWriteOnce
   resources:
     requests:
       storage: {{ .Values.userbackend.persistence.size }}
 {{- if .Values.userbackend.persistence.storageClass }}
-{{- if (eq "-" .Values.userbackend.persistence.storageClass) }}
-  storageClassName: ""
-{{- else }}
+{{- if not (eq "-" .Values.userbackend.persistence.storageClass) }}
   storageClassName: "{{ .Values.userbackend.persistence.storageClass }}"
 {{- end }}
 {{- end }}
diff --git a/helmchart/single-sign-on/values.yaml b/helmchart/single-sign-on/values.yaml
index 0658978888deb0c8ada0db7264c15023e2e4e20f..c5db1e7f4be732fe44a7045c3ab0fa4aefde2324 100644
--- a/helmchart/single-sign-on/values.yaml
+++ b/helmchart/single-sign-on/values.yaml
@@ -51,11 +51,10 @@ userbackend:
   # created and used by the userbackend
   postgresPassword: "postgres"
   persistence:
-    enabled: false
-    annotations:
-      size: 1Gi
-      storageClass: "-"
-    # existingClaim:
+    enabled: true
+    size: 1Gi
+    storageClass: "-"
+    annotations: {}
 
 hydra:
   hydra: