diff --git a/src/osgWrappers/serializers/osg/ComputeBoundingBoxCallback.cpp b/src/osgWrappers/serializers/osg/ComputeBoundingBoxCallback.cpp
index f07bb1a1f..ec5d7c2ba 100644
--- a/src/osgWrappers/serializers/osg/ComputeBoundingBoxCallback.cpp
+++ b/src/osgWrappers/serializers/osg/ComputeBoundingBoxCallback.cpp
@@ -6,11 +6,11 @@
 #include <osgDB/InputStream>
 #include <osgDB/OutputStream>
 
-REGISTER_OBJECT_WRAPPER2(osg_ComputeBoundingBoxCallback,
-                        new osg::Drawable::ComputeBoundingBoxCallback,
-                        osg::Drawable::ComputeBoundingBoxCallback,
-                        "osg::ComputeBoundingBoxCallback",
-                        "osg::Object osg::ComputeBoundingBoxCallback") {
+REGISTER_OBJECT_WRAPPER2(ComputeBoundingBoxCallback,
+                         new osg::Drawable::ComputeBoundingBoxCallback,
+                         osg::Drawable::ComputeBoundingBoxCallback,
+                         "osg::ComputeBoundingBoxCallback",
+                         "osg::Object osg::ComputeBoundingBoxCallback") {
 }
 
 #undef OBJECT_CAST
diff --git a/src/osgWrappers/serializers/osg/ComputeBoundingSphereCallback.cpp b/src/osgWrappers/serializers/osg/ComputeBoundingSphereCallback.cpp
new file mode 100644
index 000000000..9af99a2a1
--- /dev/null
+++ b/src/osgWrappers/serializers/osg/ComputeBoundingSphereCallback.cpp
@@ -0,0 +1,17 @@
+#undef OBJECT_CAST
+#define OBJECT_CAST dynamic_cast
+
+#include <osg/Node>
+#include <osgDB/ObjectWrapper>
+#include <osgDB/InputStream>
+#include <osgDB/OutputStream>
+
+REGISTER_OBJECT_WRAPPER2(ComputeBoundingSphereCallback,
+                         new osg::Node::ComputeBoundingSphereCallback,
+                         osg::Node::ComputeBoundingSphereCallback,
+                         "osg::ComputeBoundingSphereCallback",
+                         "osg::Object osg::ComputeBoundingSphereCallback") {
+}
+
+#undef OBJECT_CAST
+#define OBJECT_CAST static_cast
diff --git a/src/osgWrappers/serializers/osg/LibraryWrapper.cpp b/src/osgWrappers/serializers/osg/LibraryWrapper.cpp
index 8d7a84533..1cd56deda 100644
--- a/src/osgWrappers/serializers/osg/LibraryWrapper.cpp
+++ b/src/osgWrappers/serializers/osg/LibraryWrapper.cpp
@@ -24,6 +24,8 @@ USE_SERIALIZER_WRAPPER(ClusterCullingCallback)
 USE_SERIALIZER_WRAPPER(ColorMask)
 USE_SERIALIZER_WRAPPER(ColorMatrix)
 USE_SERIALIZER_WRAPPER(CompositeShape)
+USE_SERIALIZER_WRAPPER(ComputeBoundingBoxCallback)
+USE_SERIALIZER_WRAPPER(ComputeBoundingSphereCallback)
 USE_SERIALIZER_WRAPPER(Cone)
 USE_SERIALIZER_WRAPPER(ConvexHull)
 USE_SERIALIZER_WRAPPER(ConvexPlanarOccluder)
@@ -32,8 +34,6 @@ USE_SERIALIZER_WRAPPER(CullFace)
 USE_SERIALIZER_WRAPPER(Cylinder)
 USE_SERIALIZER_WRAPPER(Depth)
 USE_SERIALIZER_WRAPPER(Drawable)
-USE_SERIALIZER_WRAPPER(osg_Drawable_UpdateCallback)
-USE_SERIALIZER_WRAPPER(osg_ComputeBoundingBoxCallback)
 USE_SERIALIZER_WRAPPER(DrawPixels)
 USE_SERIALIZER_WRAPPER(EllipsoidModel)
 USE_SERIALIZER_WRAPPER(Fog)
@@ -108,6 +108,7 @@ USE_SERIALIZER_WRAPPER(TransferFunction1D)
 USE_SERIALIZER_WRAPPER(Transform)
 USE_SERIALIZER_WRAPPER(TriangleMesh)
 USE_SERIALIZER_WRAPPER(Uniform)
+USE_SERIALIZER_WRAPPER(UpdateCallback)
 USE_SERIALIZER_WRAPPER(UserDataContainer)
 USE_SERIALIZER_WRAPPER(VertexProgram)
 USE_SERIALIZER_WRAPPER(Viewport)
diff --git a/src/osgWrappers/serializers/osg/UpdateCallback.cpp b/src/osgWrappers/serializers/osg/UpdateCallback.cpp
index aaaa803ff..b04164fe3 100644
--- a/src/osgWrappers/serializers/osg/UpdateCallback.cpp
+++ b/src/osgWrappers/serializers/osg/UpdateCallback.cpp
@@ -6,11 +6,11 @@
 #include <osgDB/InputStream>
 #include <osgDB/OutputStream>
 
-REGISTER_OBJECT_WRAPPER2(osg_Drawable_UpdateCallback,
+REGISTER_OBJECT_WRAPPER2(UpdateCallback,
                          new osg::Drawable::UpdateCallback,
                          osg::Drawable::UpdateCallback,
                          "osg::UpdateCallback",
-                         "osg::Object osg::UpdateCallback") {}
+                         "osg::Object osg::Callback osg::UpdateCallback") {}
 
 #undef OBJECT_CAST
 #define OBJECT_CAST static_cast