diff --git a/lib/connection_pool.rb b/lib/connection_pool.rb
index 3b166bb..6e049e1 100644
--- a/lib/connection_pool.rb
+++ b/lib/connection_pool.rb
@@ -75,7 +75,9 @@ class ConnectionPool
     nil
   end
 
-  class Wrapper
+  class Wrapper < ::BasicObject
+    METHODS = [:with, :with_connection]
+
     def initialize(options = {}, &block)
       @pool = ::ConnectionPool.new(options, &block)
     end
@@ -88,7 +90,7 @@ class ConnectionPool
     alias_method :with_connection, :with
 
     def respond_to?(id, *args)
-      super(id, *args) || @pool.with { |c| c.respond_to?(id, *args) }
+      METHODS.include?(id) || @pool.with { |c| c.respond_to?(id, *args) }
     end
 
     def method_missing(name, *args, &block)
diff --git a/test/test_connection_pool.rb b/test/test_connection_pool.rb
index f5574eb..608de48 100644
--- a/test/test_connection_pool.rb
+++ b/test/test_connection_pool.rb
@@ -72,7 +72,10 @@ class TestConnectionPool < MiniTest::Unit::TestCase
     assert_equal 2, pool.do_something
     assert_equal 5, pool.do_something_with_block { 3 }
     assert_equal 6, pool.with { |net| net.fast }
+  end
 
+  def test_passthru_respond_to
+    pool = ConnectionPool.wrap(:timeout => 0.1, :size => 1) { NetworkConnection.new }
     assert pool.respond_to?(:with)
     assert pool.respond_to?(:do_something)
     assert pool.respond_to?(:do_magic)