diff --git a/backend/.env.example b/backend/.env.example
index e1b5afcb..f9c24d2b 100644
--- a/backend/.env.example
+++ b/backend/.env.example
@@ -36,7 +36,7 @@ AWS_SECRET_ACCESS_KEY=
 AWS_S3_BUCKET_NAME=
 AWS_REGION=
 
-# CORS
+# CORS (should usually be "http://localhost:3000")
 CORS_ORIGIN=
 
 # Port that backend runs on (optional - default 4000)
diff --git a/frontend/.env.example b/frontend/.env.example
index 6675b592..44da66d6 100644
--- a/frontend/.env.example
+++ b/frontend/.env.example
@@ -1,4 +1,4 @@
-# HOST
+# HOST (should usually be "http://localhost:4000")
 VITE_HOST_API_KEY=
 VITE_DEBUG=
 VITE_TELEGRAM_OAUTH_BOT_USERNAME=
\ No newline at end of file