diff --git a/src/meshlabplugins/filter_mls/mlsplugin.cpp b/src/meshlabplugins/filter_mls/mlsplugin.cpp
index 82d4ac99d..5cba87640 100644
--- a/src/meshlabplugins/filter_mls/mlsplugin.cpp
+++ b/src/meshlabplugins/filter_mls/mlsplugin.cpp
@@ -402,7 +402,7 @@ bool MlsPlugin::applyFilter(QAction* filter, MeshDocument& md, RichParameterSet&
 			{
 				// clone the control mesh
 				MeshModel* ref = par.getMesh("ControlMesh");
-				pPoints = new MeshModel();
+                                pPoints = md.addNewMesh("");
 				pPoints->updateDataMask(ref);
 				vcg::tri::Append<CMeshO,CMeshO>::Mesh(pPoints->cm, ref->cm);  // the last true means "copy all vertices"
 				vcg::tri::UpdateBounding<CMeshO>::Box(pPoints->cm);
@@ -604,7 +604,7 @@ bool MlsPlugin::applyFilter(QAction* filter, MeshDocument& md, RichParameterSet&
 		delete mls;
 		if ( (id & _PROJECTION_) && par.getMesh("ControlMesh")!=pPoints)
 		{
-			delete pPoints;
+                        md.delMesh(pPoints);
 		}
 
 		if (mesh)