diff --git a/src/osgPlugins/gdal/DataSetLayer.cpp b/src/osgPlugins/gdal/DataSetLayer.cpp
index 19ac67b5e..aa5f0baa5 100644
--- a/src/osgPlugins/gdal/DataSetLayer.cpp
+++ b/src/osgPlugins/gdal/DataSetLayer.cpp
@@ -37,7 +37,7 @@ _dataset(0), _gdalReader(0)
 }
 
 DataSetLayer::DataSetLayer(const DataSetLayer& dataSetLayer,const osg::CopyOp& copyop):
-    Layer(dataSetLayer), _gdalReader(dataSetLayer._gdalReader)
+    Layer(dataSetLayer, copyop), _gdalReader(dataSetLayer._gdalReader)
 {
     if (dataSetLayer._dataset) open();
 }