diff --git a/src/SMDS/SMDS_VtkEdge.cxx b/src/SMDS/SMDS_VtkEdge.cxx
index cb324014e..d3cf38655 100644
--- a/src/SMDS/SMDS_VtkEdge.cxx
+++ b/src/SMDS/SMDS_VtkEdge.cxx
@@ -33,7 +33,7 @@ SMDS_VtkEdge::SMDS_VtkEdge()
 {
 }
 
-SMDS_VtkEdge::SMDS_VtkEdge(std::vector<vtkIdType> nodeIds, SMDS_Mesh* mesh)
+SMDS_VtkEdge::SMDS_VtkEdge(std::vector<vtkIdType>& nodeIds, SMDS_Mesh* mesh)
 {
   init(nodeIds, mesh);
 }
@@ -42,7 +42,7 @@ SMDS_VtkEdge::~SMDS_VtkEdge()
 {
 }
 
-void SMDS_VtkEdge::init(std::vector<vtkIdType> nodeIds, SMDS_Mesh* mesh)
+void SMDS_VtkEdge::init(std::vector<vtkIdType>& nodeIds, SMDS_Mesh* mesh)
 {
   SMDS_MeshEdge::init();
   vtkUnstructuredGrid* grid = mesh->getGrid();
diff --git a/src/SMDS/SMDS_VtkEdge.hxx b/src/SMDS/SMDS_VtkEdge.hxx
index c5f04300b..ff28a3af6 100644
--- a/src/SMDS/SMDS_VtkEdge.hxx
+++ b/src/SMDS/SMDS_VtkEdge.hxx
@@ -35,9 +35,9 @@ class SMDS_EXPORT SMDS_VtkEdge: public SMDS_MeshEdge
 
 public:
   SMDS_VtkEdge();
-  SMDS_VtkEdge(std::vector<vtkIdType> nodeIds, SMDS_Mesh* mesh);
+  SMDS_VtkEdge(std::vector<vtkIdType>& nodeIds, SMDS_Mesh* mesh);
   ~SMDS_VtkEdge();
-  void init(std::vector<vtkIdType> nodeIds, SMDS_Mesh* mesh);
+  void init(std::vector<vtkIdType>& nodeIds, SMDS_Mesh* mesh);
   bool ChangeNodes(const SMDS_MeshNode * node1, const SMDS_MeshNode * node2);
   virtual bool ChangeNodes(const SMDS_MeshNode* nodes[], const int nbNodes);
   virtual bool IsMediumNode(const SMDS_MeshNode* node) const;