diff --git a/activesupport/lib/active_support/duration.rb b/activesupport/lib/active_support/duration.rb
index cd0d66a482..7da357730b 100644
--- a/activesupport/lib/active_support/duration.rb
+++ b/activesupport/lib/active_support/duration.rb
@@ -4,8 +4,8 @@ require 'active_support/core_ext/object/acts_like'
 
 module ActiveSupport
   # Provides accurate date and time measurements using Date#advance and 
-  # Time#advance, respectively. It mainly supports the methods on Numeric,
-  # such as in this example:
+  # Time#advance, respectively. It mainly supports the methods on Numeric.
+  # Example:
   #
   #   1.month.ago       # equivalent to Time.now.advance(:months => -1)
   class Duration < BasicObject