1 files changed, 2 insertions, 0 deletions

diff --git a/config.ru b/config.ru
index 5bc2a619e..e666ae557 100644
--- a/config.ru
+++ b/config.ru
@@ -1,3 +1,5 @@
+# frozen_string_literal: false
+
 # This file is used by Rack-based servers to start the application.
 
 require ::File.expand_path('../config/environment',  __FILE__)