diff --git a/config/application.yml.example b/config/application.yml.example
index 31dec7f..1c96733 100644
--- a/config/application.yml.example
+++ b/config/application.yml.example
@@ -13,6 +13,10 @@ SECRET_TOKEN: 'e4122773d4324fce978c52cde790d84d14f7194f377aea41b7b8302d1d10150e6
 #locale: en or zh-CN, zh-CN is default value
 LOCALE: 'zh-CN'
 
+# sidekiq redis namespace, if you configure two blog in on VPS, you should change it.
+# default is wblog
+REDIS_NAMESPACE: 'wblog'
+
 # META description for SEO
 INTRODUCE: '这是李亚飞的博客, 李亚飞是暂住在深圳的一名 Ruby 程序员, 这里是关于技术, 创业, 生活的思考'
 
diff --git a/config/initializers/sidekiq.rb b/config/initializers/sidekiq.rb
index 948e796..7b6ada6 100644
--- a/config/initializers/sidekiq.rb
+++ b/config/initializers/sidekiq.rb
@@ -1,7 +1,7 @@
 Sidekiq.configure_server do |config|
-    config.redis = { :namespace => 'wblog' }
+    config.redis = { :namespace => ENV['REDIS_NAMESPACE'] }
 end
 
 Sidekiq.configure_client do |config|
-    config.redis = { :namespace => 'wblog' }
+    config.redis = { :namespace => ENV['REDIS_NAMESPACE']}
 end