diff --git a/include/osg/AutoTransform b/include/osg/AutoTransform
index 8bf2c0e9e..0bef0788a 100644
--- a/include/osg/AutoTransform
+++ b/include/osg/AutoTransform
@@ -82,6 +82,7 @@ class OSG_EXPORT AutoTransform : public Transform
 
         virtual bool computeWorldToLocalMatrix(Matrix& matrix,NodeVisitor* nv) const;
 
+        virtual BoundingSphere computeBound() const;
 
 
     protected :
diff --git a/src/osg/AutoTransform.cpp b/src/osg/AutoTransform.cpp
index a1677ad58..abac04529 100644
--- a/src/osg/AutoTransform.cpp
+++ b/src/osg/AutoTransform.cpp
@@ -189,3 +189,16 @@ void AutoTransform::accept(NodeVisitor& nv)
     // now do the proper accept
     Transform::accept(nv);
 }
+
+BoundingSphere AutoTransform::computeBound() const
+{
+    BoundingSphere bsphere;
+
+    float scale( 1.f );
+    if ( getAutoScaleToScreen() && _firstTimeToInitEyePoint )
+        return bsphere;
+
+    bsphere = Transform::computeBound();
+
+    return bsphere;
+}