lib/mongo_mapper/extensions/boolean.rb in mongo_mapper-0.9.0 vs lib/mongo_mapper/extensions/boolean.rb in mongo_mapper-0.9.1

@@ -37,8 +37,8 @@
       end
     end
   end
 end
 
-class Boolean
-  extend MongoMapper::Extensions::Boolean
-end
\ No newline at end of file
+class Boolean; end unless defined?(Boolean)
+
+Boolean.extend MongoMapper::Extensions::Boolean