diff --git a/examples/fibers/active_record.ru b/examples/fibers/active_record.ru
index 6b0363b..1d798da 100644
--- a/examples/fibers/active_record.ru
+++ b/examples/fibers/active_record.ru
@@ -5,7 +5,7 @@ Bundler.setup(:default, :example)
 require 'cramp'
 require 'active_record'
 
-ActiveRecord::Base.establish_connection(:adapter => "em_mysql2", :username => 'root', :database => "arel_development")
+ActiveRecord::Base.establish_connection(:adapter => "em_mysql2", :username => 'root', :database => "arel_development", :pool => 100)
 
 class User < ActiveRecord::Base
   validates_presence_of :name
diff --git a/examples/fibers/long_ar_query.ru b/examples/fibers/long_ar_query.ru
index a307190..6316712 100644
--- a/examples/fibers/long_ar_query.ru
+++ b/examples/fibers/long_ar_query.ru
@@ -12,7 +12,10 @@ class User < ActiveRecord::Base
 end
 
 class LongQueryController < Cramp::Action
-  use_fiber_pool
+  use_fiber_pool do |pool|
+    # Called everytime after a fiber is done a callback
+    pool.generic_callbacks << proc { ActiveRecord::Base.clear_active_connections! }
+  end
 
   on_start :run_srsly_long_query