diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index ac82cc1b9a772..461007fd80b86 100755
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -1286,7 +1286,7 @@ def set_sequence_name(value = nil, &block)
 
       # Turns the +table_name+ back into a class name following the reverse rules of +table_name+.
       def class_name(table_name = table_name) # :nodoc:
-        ActiveSupport::Deprecation.warn("ActiveRecord::Base#class_name is deprecated and will be removed in Rails 2.3.9.", caller)
+        ActiveSupport::Deprecation.warn("ActiveRecord::Base#class_name is deprecated and will be removed in Rails 3.", caller)
 
         # remove any prefix and/or suffix from the table name
         class_name = table_name[table_name_prefix.length..-(table_name_suffix.length + 1)].camelize