diff --git a/MeshGeoToolsLib/BoundaryElementsAtPoint.h b/MeshGeoToolsLib/BoundaryElementsAtPoint.h
index 34c33e264fd686e66201be86d60bf7222d2a89bc..f57164b67f931afd6e55e96c58703e1ebe8bb74a 100644
--- a/MeshGeoToolsLib/BoundaryElementsAtPoint.h
+++ b/MeshGeoToolsLib/BoundaryElementsAtPoint.h
@@ -34,6 +34,10 @@ public:
     /// \param mshNodeSearcher  a MeshNodeSearcher object which is internally
     /// used to search mesh nodes
     /// \param point            a point object where edges are searched
+    /// \param multiple_nodes_allowed Allows to find multiple nodes within the
+    /// search radius, the nearest node is returned (as point element). This
+    /// enables to specify larger search radius to find possible other
+    /// geometries that don't match exactly to the mesh.
     BoundaryElementsAtPoint(MeshLib::Mesh const& mesh,
                             MeshNodeSearcher const& mshNodeSearcher,
                             GeoLib::Point const& point,