diff --git a/app/models/ruling_bus_cache.rb b/app/models/ruling_bus_cache.rb
index 7c0f3ec..346b05b 100644
--- a/app/models/ruling_bus_cache.rb
+++ b/app/models/ruling_bus_cache.rb
@@ -1,4 +1,5 @@
 class RulingBusCache
+  include RulingBusConcern
   include Mongoid::Document
   include Mongoid::Timestamps
   field :dict, type: Array, default: []
diff --git a/app/models/ruling_bus_city.rb b/app/models/ruling_bus_city.rb
index e9d2441..d186261 100644
--- a/app/models/ruling_bus_city.rb
+++ b/app/models/ruling_bus_city.rb
@@ -1,4 +1,5 @@
 class RulingBusCity
+  include RulingBusConcern
   include Mongoid::Document
   include Mongoid::Timestamps
   field :dict, type: Hash, default: {}
diff --git a/app/models/ruling_bus_info.rb b/app/models/ruling_bus_info.rb
index 2fe09b5..8974095 100644
--- a/app/models/ruling_bus_info.rb
+++ b/app/models/ruling_bus_info.rb
@@ -1,4 +1,5 @@
 class RulingBusInfo
+  include RulingBusConcern
   include Mongoid::Document
   include Mongoid::Timestamps