diff --git a/charts/maddy/templates/mta-sts.yaml b/charts/maddy/templates/mta-sts.yaml
index dd57797..c44e3dd 100644
--- a/charts/maddy/templates/mta-sts.yaml
+++ b/charts/maddy/templates/mta-sts.yaml
@@ -9,7 +9,7 @@
     version: STSv1
     mode: enforce
     max_age: 604800
-    mx: {{ .Values.mailGateway.mxHostname}}
+    mx: {{ .Values.mailGateway.mxHostname }}
 ---
 apiVersion: cert-manager.io/v1
 kind: Certificate