diff --git a/lib/action_cable/server/worker.rb b/lib/action_cable/server/worker.rb
index 5b03000142743a465aa0f5b266953f96118a561e..d7823ecf93976b6f2297d34886a8c885af426b6d 100644
--- a/lib/action_cable/server/worker.rb
+++ b/lib/action_cable/server/worker.rb
@@ -4,9 +4,9 @@ module Server
     class Worker
       include ActiveSupport::Callbacks
       include Celluloid
-      include ClearDatabaseConnections
 
       define_callbacks :work
+      include ClearDatabaseConnections
 
       def invoke(receiver, method, *args)
         run_callbacks :work do