diff --git a/src/Mod/Fem/App/FemVTKTools.cpp b/src/Mod/Fem/App/FemVTKTools.cpp
index 60eb18dbb3..9c4ee433ec 100644
--- a/src/Mod/Fem/App/FemVTKTools.cpp
+++ b/src/Mod/Fem/App/FemVTKTools.cpp
@@ -440,17 +440,15 @@ void FemVTKTools::exportVTKMesh(const FemMesh* mesh, vtkSmartPointer<vtkUnstruct
     Base::Console().Message("Start: VTK mesh builder ======================\n");
     SMESH_Mesh* smesh = const_cast<SMESH_Mesh*>(mesh->getSMesh());
     SMESHDS_Mesh* meshDS = smesh->GetMeshDS();
-    const SMDS_MeshInfo& info = meshDS->GetMeshInfo();
 
     //start with the nodes
     vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
     SMDS_NodeIteratorPtr aNodeIter = meshDS->nodesIterator();
 
-    points->SetNumberOfPoints(info.NbNodes());
     for(; aNodeIter->more(); ) {
         const SMDS_MeshNode* node = aNodeIter->next();  // why float, not double?
         double coords[3] = {double(node->X()*scale), double(node->Y()*scale), double(node->Z()*scale)};
-        points->SetPoint(node->GetID()-1, coords);
+        points->InsertPoint(node->GetID()-1, coords);  // memory is allocated by VTK points size = max node id, points will be insterted in SMESH point gaps too
     }
     grid->SetPoints(points);
     // faces