diff --git a/roles/openldap/defaults/main.yaml b/roles/openldap/defaults/main.yaml
index 9b6aabe..cc492b1 100644
--- a/roles/openldap/defaults/main.yaml
+++ b/roles/openldap/defaults/main.yaml
@@ -38,7 +38,7 @@ openldap_default_values:
   podAnnotations: {}
   service:
     annotations:
-      external-dns.alpha.kubernetes.io/hostname: {{ openldap_short_name }}.{{ domain }}
+      external-dns.alpha.kubernetes.io/hostname: "{{ openldap_short_name }}.{{ domain }}"
     clusterIP: ""
   
     ldapPort: 389
diff --git a/roles/postfix/defaults/main.yaml b/roles/postfix/defaults/main.yaml
index 36becba..a5f7fa0 100644
--- a/roles/postfix/defaults/main.yaml
+++ b/roles/postfix/defaults/main.yaml
@@ -7,7 +7,7 @@ postfix_default_values:
   
   tls:
     enabled: true
-    existingSecret: {{ mail_short_name | default('mail') }}.{{ domain }}-secret
+    existingSecret: "{{ mail_short_name | default('mail') }}.{{ domain }}-secret"
   
   postfix:
     image: