diff --git a/config/mail_room.yml b/config/mail_room.yml
index 761a32adb9ee4f14ace3031b0349182bcd1bf16d..7cab24b295e863ec0d19b95d25b198e74b6d80d8 100644
--- a/config/mail_room.yml
+++ b/config/mail_room.yml
@@ -2,7 +2,7 @@
 <%
 require "yaml"
 require "json"
-require_relative "lib/gitlab/redis"
+require_relative "lib/gitlab/redis" unless defined?(Gitlab::Redis)
 
 rails_env = ENV["RAILS_ENV"] || ENV["RACK_ENV"] || "development"