diff --git a/lib/restfulie/common/converter/open_search.rb b/lib/restfulie/common/converter/open_search.rb
index 2a53e0a2..8fb49b68 100644
--- a/lib/restfulie/common/converter/open_search.rb
+++ b/lib/restfulie/common/converter/open_search.rb
@@ -8,7 +8,7 @@ class Converter::OpenSearch#:nodoc:
 
 class Restfulie::Common::Converter::OpenSearch
   
-  def unmarshal(xml)
+  def self.unmarshal(xml)
     hash = Hash.from_xml(xml)
     descriptor = Descriptor.new(hash)
   end
diff --git a/spec/unit/common/converter/opensearch/descriptor_spec.rb b/spec/unit/common/converter/opensearch/descriptor_spec.rb
index 1cfc6af7..c2e7aa95 100644
--- a/spec/unit/common/converter/opensearch/descriptor_spec.rb
+++ b/spec/unit/common/converter/opensearch/descriptor_spec.rb
@@ -13,7 +13,7 @@
         <Contact>admin@restbuy.com</Contact>
         <Url type="application/atom+xml"  template="http://localhost:3000/products?q={searchTerms}&amp;pw={startPage?}&amp;format=atom" />
       </OpenSearchDescription>'
-      @descriptor = Restfulie::Common::Converter::OpenSearch.new.unmarshal(xml)
+      @descriptor = Restfulie::Common::Converter::OpenSearch.unmarshal(xml)
     end
   
     it "should unmarshall opensearch xml descriptions" do