diff --git a/tasks/mail.yaml b/tasks/mail.yaml
index 50f51c7..2402eef 100644
--- a/tasks/mail.yaml
+++ b/tasks/mail.yaml
@@ -217,7 +217,7 @@
                 persistentVolumeClaim:
                   claimName: mail
               - name: dkim
-                PersistentVolumeClaim:
+                persistentVolumeClaim:
                   claimName: dkim
 
 - name: Expose deployment as a service