diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md
index df18b7540be59bfab28bc7a8668887d6333b0bf7..1d11ae2afda38ee93c0f81c7f36c4f1193f74e52 100644
--- a/activesupport/CHANGELOG.md
+++ b/activesupport/CHANGELOG.md
@@ -1,6 +1,6 @@
 ## Rails 4.0.0 (unreleased) ##
 
-*   Make sure that ActiveSupport::Logger includes the Logger extensions from core_ext/logger.
+*   Add ActiveSupport::Logger#silence that works the same as the old Logger#silence extension.
 
     *DHH*
 
diff --git a/activesupport/lib/active_support/core_ext/logger.rb b/activesupport/lib/active_support/core_ext/logger.rb
index 16fce81445506a4823ab2c5123c85a31a903d2ea..36c8f241b27a52f45d1a04cfedfde15e5bbada06 100644
--- a/activesupport/lib/active_support/core_ext/logger.rb
+++ b/activesupport/lib/active_support/core_ext/logger.rb
@@ -1,5 +1,6 @@
 require 'active_support/core_ext/class/attribute_accessors'
 require 'active_support/deprecation'
+require 'active_support/logger_silence'
 
 ActiveSupport::Deprecation.warn 'this file is deprecated and will be removed'
 
@@ -33,25 +34,7 @@ def around_#{level}(before_message, after_message)  # def around_debug(before_me
 #
 # Note: This logger is deprecated in favor of ActiveSupport::BufferedLogger
 class Logger
-  ##
-  # :singleton-method:
-  # Set to false to disable the silencer
-  cattr_accessor :silencer
-  self.silencer = true
-
-  # Silences the logger for the duration of the block.
-  def silence(temporary_level = Logger::ERROR)
-    if silencer
-      begin
-        old_logger_level, self.level = level, temporary_level
-        yield self
-      ensure
-        self.level = old_logger_level
-      end
-    else
-      yield self
-    end
-  end
+  include LoggerSilence
 
   alias :old_datetime_format= :datetime_format=
   # Logging date-time format (string passed to +strftime+). Ignored if the formatter
diff --git a/activesupport/lib/active_support/logger.rb b/activesupport/lib/active_support/logger.rb
index 023e22e6429aa1ad9699cbad8a1187494a20c14e..4a55bbb35030f4909f83d66f35155f10ae6a5d51 100644
--- a/activesupport/lib/active_support/logger.rb
+++ b/activesupport/lib/active_support/logger.rb
@@ -1,9 +1,11 @@
 require 'active_support/core_ext/class/attribute_accessors'
+require 'active_support/logger_silence'
 require 'logger'
-require 'active_support/core_ext/logger'
 
 module ActiveSupport
   class Logger < ::Logger
+    include LoggerSilence
+
     # Broadcasts logs to multiple loggers.
     def self.broadcast(logger) # :nodoc:
       Module.new do
diff --git a/activesupport/lib/active_support/logger_silence.rb b/activesupport/lib/active_support/logger_silence.rb
new file mode 100644
index 0000000000000000000000000000000000000000..a8efdef944fa7def71c0e33c24ae40ed7e113e1f
--- /dev/null
+++ b/activesupport/lib/active_support/logger_silence.rb
@@ -0,0 +1,24 @@
+require 'active_support/concern'
+
+module LoggerSilence
+  extend ActiveSupport::Concern
+  
+  included do
+    cattr_accessor :silencer
+    self.silencer = true
+  end
+
+  # Silences the logger for the duration of the block.
+  def silence(temporary_level = Logger::ERROR)
+    if silencer
+      begin
+        old_logger_level, self.level = level, temporary_level
+        yield self
+      ensure
+        self.level = old_logger_level
+      end
+    else
+      yield self
+    end
+  end
+end
\ No newline at end of file