diff --git a/.env.sample b/.env.sample
index 7c0331d..96a046f 100644
--- a/.env.sample
+++ b/.env.sample
@@ -1,6 +1,6 @@
 TYPE=rsshub
 
-DOMAIN={{ .Domain }}
+DOMAIN=rsshub.example.com
 LETS_ENCRYPT_ENV=production
 
 COMPOSE_FILE="compose.yml"