diff --git a/src/osgUtil/Optimizer.cpp b/src/osgUtil/Optimizer.cpp
index bd4caeab8..219b08135 100644
--- a/src/osgUtil/Optimizer.cpp
+++ b/src/osgUtil/Optimizer.cpp
@@ -1097,7 +1097,7 @@ void Optimizer::FlattenStaticTransformsVisitor::apply(osg::Geode& geode)
         for(unsigned int i=0;i<geode.getNumDrawables();++i)
         {
             osg::Geometry *geometry = geode.getDrawable(i)->asGeometry();
-            if(geometry)
+            if((geometry) && (isOperationPermissibleForObject(&geode)) && (isOperationPermissibleForObject(geometry)))
             {
                 if(geometry->getVertexArray() && geometry->getVertexArray()->referenceCount() > 1) {
                     geometry->setVertexArray(dynamic_cast<osg::Array*>(geometry->getVertexArray()->clone(osg::CopyOp::DEEP_COPY_ALL)));