diff --git a/charts/incubator/typecho/values.yaml b/charts/incubator/typecho/values.yaml
index 366f493e9df..b8ec47ee778 100644
--- a/charts/incubator/typecho/values.yaml
+++ b/charts/incubator/typecho/values.yaml
@@ -34,7 +34,7 @@ envValueFrom:
   TYPECHO_DB_HOST:
     secretKeyRef:
       name: mariadbcreds
-      key: plainporthost
+      key: plainhost
   TYPECHO_DB_PASSWORD:
     secretKeyRef:
       name: mariadbcreds