diff --git a/ruby/spec/jam_ruby/models/jam_track_mixdown_package_spec.rb b/ruby/spec/jam_ruby/models/jam_track_mixdown_package_spec.rb
index e0d6cdc00..7cd2a566a 100644
--- a/ruby/spec/jam_ruby/models/jam_track_mixdown_package_spec.rb
+++ b/ruby/spec/jam_ruby/models/jam_track_mixdown_package_spec.rb
@@ -10,7 +10,7 @@ describe JamTrackMixdownPackage do
   it "can be created" do
     mixdown= FactoryGirl.create(:jam_track_mixdown)
 
-    package = JamTrackMixdownPackage.create(mixdown, JamTrackMixdownPackage::FILE_TYPE_OGG, 48, true)
+    package = JamTrackMixdownPackage.create(mixdown, JamTrackMixdownPackage::FILE_TYPE_OGG, 48, 'jkz')
 
     puts package.errors.inspect
     package.errors.any?.should == false