lib/elasticsearch/model/indexing.rb in elasticsearch-model-0.1.4 vs lib/elasticsearch/model/indexing.rb in elasticsearch-model-0.1.5

@@ -334,10 +334,10 @@
         # @see http://rubydoc.info/gems/elasticsearch-api/Elasticsearch/API/Actions:update
         #
         def update_document(options={})
           if changed_attributes = self.instance_variable_get(:@__changed_attributes)
             attributes = if respond_to?(:as_indexed_json)
-              changed_attributes.select { |k,v| self.as_indexed_json.keys.include? k }
+              self.as_indexed_json.select { |k,v| changed_attributes.keys.map(&:to_s).include? k.to_s }
             else
               changed_attributes
             end
 
             client.update(