diff --git a/extensions/rdf-exporter/module/MOD-INF/controller.js b/extensions/rdf-exporter/module/MOD-INF/controller.js
index e64b35e7e..5f76e4287 100755
--- a/extensions/rdf-exporter/module/MOD-INF/controller.js
+++ b/extensions/rdf-exporter/module/MOD-INF/controller.js
@@ -21,11 +21,11 @@ function init() {
     /*
      *  Exporters
      */
-    var ExportRowsCommand = Packages.com.google.gridworks.commands.project.ExportRowsCommand;
+    var ExporterRegistry = Packages.com.google.gridworks.exporters.ExporterRegistry;
     var RdfExporter = Packages.com.google.gridworks.rdf.exporters.RdfExporter;
     
-    ExportRowsCommand.registerExporter("rdf", new RdfExporter("RDF/XML"));
-    ExportRowsCommand.registerExporter("n3", new RdfExporter("N3"));
+    ExporterRegistry.registerExporter("rdf", new RdfExporter("RDF/XML"));
+    ExporterRegistry.registerExporter("n3", new RdfExporter("N3"));
     
     /*
      *  GEL Functions and Binders
diff --git a/extensions/rdf-exporter/src/com/google/gridworks/rdf/RdfSchema.java b/extensions/rdf-exporter/src/com/google/gridworks/rdf/RdfSchema.java
index b16505d5a..7ab366cb2 100755
--- a/extensions/rdf-exporter/src/com/google/gridworks/rdf/RdfSchema.java
+++ b/extensions/rdf-exporter/src/com/google/gridworks/rdf/RdfSchema.java
@@ -23,6 +23,19 @@ public class RdfSchema implements OverlayModel {
     public List<ConstantBlankNode> get_blanks() {
         return _blanks;
     }
+    
+    @Override
+    public void onBeforeSave() {
+    }
+    
+    @Override
+    public void onAfterSave() {
+    }
+    
+    
+    @Override
+    public void dispose() {
+    }
 
     protected URI baseUri;