diff --git a/config/initializers/sidekiq.rb b/config/initializers/sidekiq.rb
index 6502b991a2b..fa1c85bbc8f 100644
--- a/config/initializers/sidekiq.rb
+++ b/config/initializers/sidekiq.rb
@@ -2,7 +2,7 @@ require "#{Rails.root}/lib/discourse_redis"
 
 $redis = DiscourseRedis.new
 
-if Rails.env.development?
+if Rails.env.development? and !ENV['DO_NOT_FLUSH_REDIS']
   puts "Flushing redis (development mode)"
   $redis.flushall
 end