diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0f9e2dab..055d52c7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 * [#116](https://github.com/slack-ruby/slack-ruby-client/pull/116): Use [slack-ruby/slack-api-ref](https://github.com/slack-ruby/slack-api-ref) as machine API reference - [@dblock](https://github.com/dblock).
 * [#116](https://github.com/slack-ruby/slack-ruby-client/pull/116): Added `users_setPhoto` and `users_deletePhoto` to Web API - [@dblock](https://github.com/dblock).
 * [#81](https://github.com/slack-ruby/slack-ruby-client/pull/81): Require faraday 0.9.0 or newer - [@leppert](https://github.com/leppert).
+* [#123](https://github.com/slack-ruby/slack-ruby-client/pull/123): Fix a warning about duplicate definitions - [@michaelherold](https://github.com/michaelherold).
 * Your contribution here.
 
 ### 0.7.7 (8/29/2016)
diff --git a/lib/slack/real_time/concurrency/celluloid.rb b/lib/slack/real_time/concurrency/celluloid.rb
index 20aecf6e..4e31b320 100644
--- a/lib/slack/real_time/concurrency/celluloid.rb
+++ b/lib/slack/real_time/concurrency/celluloid.rb
@@ -15,8 +15,7 @@ class Socket < Slack::RealTime::Socket
           BLOCK_SIZE = 4096
 
           extend ::Forwardable
-          def_delegator :socket, :write
-          def_delegators :driver, :text, :binary, :close
+          def_delegators :driver, :text, :binary
 
           attr_reader :socket