diff --git a/molgenis/questions.yml b/molgenis/questions.yml
index bbccea2..b5f40e5 100644
--- a/molgenis/questions.yml
+++ b/molgenis/questions.yml
@@ -104,7 +104,7 @@ questions:
   show_subquestion_if: true
   subquestions:
   - variable: molgenis.persistence.size
-    default: "10Gi"
+    default: "30Gi"
     description: "Size of MOLGENIS filestore (not the database size)"
     type: string
     label: Size filestore
diff --git a/molgenis/templates/deployment.yaml b/molgenis/templates/deployment.yaml
index 06708a9..7895b0d 100644
--- a/molgenis/templates/deployment.yaml
+++ b/molgenis/templates/deployment.yaml
@@ -72,7 +72,7 @@ spec:
         volumes:
         - name: molgenis-nfs
           persistentVolumeClaim:
-            claimName: {{ .Values.persistence.name }}
+            claimName: {{ .persistence.name }}
         {{- end }}
         {{- end }}
 
diff --git a/molgenis/values.yaml b/molgenis/values.yaml
index a0151d7..c2c2974 100644
--- a/molgenis/values.yaml
+++ b/molgenis/values.yaml
@@ -33,7 +33,7 @@ molgenis:
   persistence:
     enabled: false
     name: molgenis-nfs-claim
-    size: 30G
+    size: 30Gi
   services:
     opencpu:
       host: localhost