diff --git a/charts/matrix/templates/well-known.yaml b/charts/matrix/templates/well-known.yaml
index ef79b05..218e335 100644
--- a/charts/matrix/templates/well-known.yaml
+++ b/charts/matrix/templates/well-known.yaml
@@ -27,7 +27,7 @@
   tls:
   - hosts:
     - {{ .Values.domain }}
-    secretName: cert-{{ .Values.domain }}
+    secretName: cert-www.{{ .Values.domain }}
   - hosts:
     - www.{{ .Values.domain }}
     secretName: cert-www.{{ .Values.domain }}