diff --git a/lib/shoulda/matchers/active_record/serialize_matcher.rb b/lib/shoulda/matchers/active_record/serialize_matcher.rb
index ccb4aa43..09064c46 100644
--- a/lib/shoulda/matchers/active_record/serialize_matcher.rb
+++ b/lib/shoulda/matchers/active_record/serialize_matcher.rb
@@ -5,7 +5,7 @@ module Shoulda # :nodoc:
       # Ensure that the field becomes serialized.
       #
       # Options:
-      # * <tt>:as</tt> - tests that the association makes use of the class_name option.
+      # * <tt>:as</tt> - tests that the serialized attribute makes use of the class_name option.
       #
       # Example:
       #   it { should serialize(:details) }