diff --git a/CHANGELOG.rdoc b/CHANGELOG.rdoc
index eb74e9423..7313b89a6 100644
--- a/CHANGELOG.rdoc
+++ b/CHANGELOG.rdoc
@@ -6,6 +6,8 @@
 
 * FIXED: whois.nic.it parser doesn't correctly understand reserved domains.
 
+* FIXED: Release 2.1.0 is not compatible under Rails 2.3 (#117).
+
 
 == Release 2.1.0
 
diff --git a/lib/core_ext.rb b/lib/core_ext.rb
index 996f8cd87..553b490ed 100644
--- a/lib/core_ext.rb
+++ b/lib/core_ext.rb
@@ -1,4 +1,4 @@
-if defined?(ActiveSupport) && ActiveSupport::VERSION::MAJOR == 3
+if defined?(ActiveSupport::VERSION) && ActiveSupport::VERSION::MAJOR == 3
   require 'active_support/core_ext/array/wrap'
   require 'active_support/core_ext/date_time/conversions'
   require 'core_ext/class/attribute'
diff --git a/lib/core_ext/date_time/conversions.rb b/lib/core_ext/date_time/conversions.rb
index d824597cd..0d0a90a59 100644
--- a/lib/core_ext/date_time/conversions.rb
+++ b/lib/core_ext/date_time/conversions.rb
@@ -1,10 +1,9 @@
 require 'date'
 
-
 class DateTime
   # Ruby 1.9 has DateTime#to_time which internally relies on Time. We define our own #to_time which allows
   # DateTimes outside the range of what can be created with Time.
-  remove_method :to_time if instance_methods.include?(:to_time)
+  # remove_method :to_time if instance_methods.include?(:to_time)
 
   # Attempts to convert self to a Ruby Time object; returns self if out of range of Ruby Time class.
   # If self has an offset other than 0, self will just be returned unaltered, since there's no clean way to map it to a Time.