diff --git a/examples/osgvolume/osgvolume.cpp b/examples/osgvolume/osgvolume.cpp
index b28214d7d70..2bb6f9bc45a 100644
--- a/examples/osgvolume/osgvolume.cpp
+++ b/examples/osgvolume/osgvolume.cpp
@@ -1653,7 +1653,7 @@ int main( int argc, char **argv )
     {
         std::string ext = osgDB::getFileExtension(outputFile);
         std::string name_no_ext = osgDB::getNameLessExtension(outputFile);
-        if (ext=="osg")
+        if (ext=="osg" || ext=="osgt" || ext=="osgx" )
         {
             if (image_3d.valid())
             {
@@ -1662,7 +1662,7 @@ int main( int argc, char **argv )
             }
             osgDB::writeNodeFile(*volume, outputFile);
         }
-        else if (ext=="ive")
+        else if (ext=="ive" || ext=="osgb" )
         {
             osgDB::writeNodeFile(*volume, outputFile);
         }
diff --git a/src/osgWrappers/serializers/osgVolume/SampleDensityProperty.cpp b/src/osgWrappers/serializers/osgVolume/SampleDensityProperty.cpp
index 8f5dc6f3215..9291e7553a2 100644
--- a/src/osgWrappers/serializers/osgVolume/SampleDensityProperty.cpp
+++ b/src/osgWrappers/serializers/osgVolume/SampleDensityProperty.cpp
@@ -3,9 +3,22 @@
 #include <osgDB/InputStream>
 #include <osgDB/OutputStream>
 
-REGISTER_OBJECT_WRAPPER( osgVolume_SampleDensityProperty,
-                         new osgVolume::SampleDensityProperty,
-                         osgVolume::SampleDensityProperty,
-                         "osg::Object osgVolume::Property osgVolume::ScalarProperty osgVolume::SampleDensityProperty" )
+namespace osgVolume_SampleDensityProperty
 {
+    REGISTER_OBJECT_WRAPPER( osgVolume_SampleDensityProperty,
+                            new osgVolume::SampleDensityProperty,
+                            osgVolume::SampleDensityProperty,
+                            "osg::Object osgVolume::Property osgVolume::ScalarProperty osgVolume::SampleDensityProperty" )
+    {
+    }
+}
+
+namespace osgVolume_SampleDensityWhenMovingProperty
+{
+    REGISTER_OBJECT_WRAPPER( osgVolume_SampleDensityWhenMovingProperty,
+                            new osgVolume::SampleDensityWhenMovingProperty,
+                            osgVolume::SampleDensityWhenMovingProperty,
+                            "osg::Object osgVolume::Property osgVolume::ScalarProperty osgVolume::SampleDensityWhenMovingProperty" )
+    {
+    }
 }