1 files changed, 8 insertions, 4 deletions
diff --git a/lib/arel/algebra/extensions/hash.rb b/lib/arel/algebra/extensions/hash.rb
index 82cd5e11d3..05c15e7ebe 100644
--- a/lib/arel/algebra/extensions/hash.rb
+++ b/lib/arel/algebra/extensions/hash.rb
@@ -1,7 +1,11 @@
-class Hash
-  def bind(relation)
-    inject({}) do |bound, (key, value)|
-      bound.merge(key.bind(relation) => value.bind(relation))
+module Arel
+  module HashExtensions
+    def bind(relation)
+      inject({}) do |bound, (key, value)|
+        bound.merge(key.bind(relation) => value.bind(relation))
+      end
     end
+    
+    Hash.send(:include, self)
   end
 end