diff --git a/spec/models/project_services/discord_service_spec.rb b/spec/models/project_services/discord_service_spec.rb
index 967c6568583687f6624a9d7926629a78ecaf5ec7..695fa96d9c19a94c8703178823f45442887b3b47 100644
--- a/spec/models/project_services/discord_service_spec.rb
+++ b/spec/models/project_services/discord_service_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "spec_helper"
 
 describe DiscordService do