diff --git a/src/SMESH/SMESH_MesherHelper.hxx b/src/SMESH/SMESH_MesherHelper.hxx
index 56320951e..0073e0881 100644
--- a/src/SMESH/SMESH_MesherHelper.hxx
+++ b/src/SMESH/SMESH_MesherHelper.hxx
@@ -219,6 +219,8 @@ class SMESH_EXPORT SMESH_MesherHelper
 
   static double MaxTolerance( const TopoDS_Shape& shape );
 
+  static double GetAngle( const TopoDS_Edge & E1, const TopoDS_Edge & E2, const TopoDS_Face & F);
+
   static bool IsClosedEdge( const TopoDS_Edge& anEdge );
 
   static TopoDS_Vertex IthVertex( const bool is2nd, TopoDS_Edge anEdge, const bool CumOri=true );