diff --git a/.env.example b/.env.example
index d8fb460..04dfc9a 100644
--- a/.env.example
+++ b/.env.example
@@ -18,6 +18,7 @@
 
 # Optional (for persisting preview images to redis)
 # NOTE: if you want to enable redis, only REDIS_HOST and REDIS_PASSWORD are required
+# NOTE: don't forget to set isRedisEnabled to true in the site.config.js file
 #REDIS_HOST=
 #REDIS_PASSWORD=
 #REDIS_USER='default'