diff --git a/src/osgPlugins/ive/DataInputStream.cpp b/src/osgPlugins/ive/DataInputStream.cpp
index 7406014dc..14717d5cf 100644
--- a/src/osgPlugins/ive/DataInputStream.cpp
+++ b/src/osgPlugins/ive/DataInputStream.cpp
@@ -60,6 +60,7 @@
 #include "PolygonStipple.h"
 
 
+#include "Node.h"
 #include "Group.h"
 #include "MatrixTransform.h"
 #include "Camera.h"
@@ -1854,6 +1855,10 @@ osg::Node* DataInputStream::readNode()
         node = new osgVolume::VolumeTile();
         ((ive::VolumeTile*)(node.get()))->read(this);
     }
+    else if(nodeTypeID== IVENODE){
+        node = new osg::Node();
+        ((ive::Node*)(node.get()))->read(this);
+    }
     else{
         throwException("Unknown node identification in DataInputStream::readNode()");
     }
diff --git a/src/osgPlugins/ive/DataOutputStream.cpp b/src/osgPlugins/ive/DataOutputStream.cpp
index ad79a6ff7..fc9d7cd54 100644
--- a/src/osgPlugins/ive/DataOutputStream.cpp
+++ b/src/osgPlugins/ive/DataOutputStream.cpp
@@ -62,6 +62,7 @@
 #include "Light.h"
 #include "PolygonStipple.h"
 
+#include "Node.h"
 #include "Group.h"
 #include "MatrixTransform.h"
 #include "Camera.h"
@@ -1411,7 +1412,13 @@ void DataOutputStream::writeNode(const osg::Node* node)
         }
         else
         {
-            OSG_WARN<<"Unknown node in Group::write(), className()="<<node->className()<<std::endl;
+            if (typeid(node)!=typeid(osg::Node))
+            {
+                OSG_WARN<<"Unknown node in Group::write(), className()="<<node->className()<<std::endl;
+            }
+
+            ((ive::Node*)(node))->write(this);
+
             // throwException(std::string("Unknown node in Group::write(), className()=")+node->className());
         }