diff --git a/lib/shackles/connection_specification.rb b/lib/shackles/connection_specification.rb
index <HASH>..<HASH> 100644
--- a/lib/shackles/connection_specification.rb
+++ b/lib/shackles/connection_specification.rb
@@ -1,3 +1,5 @@
+require 'i18n/core_ext/hash' unless Hash.method_defined?(:deep_symbolize_keys)
+
 module Shackles
   module ConnectionSpecification
     class CacheCoherentHash < Hash
fix for deep_symbolize_keys in rails 3