diff --git a/doc/salome/gui/SMESH/images/blsurf_parameters_enforced_vertices.png b/doc/salome/gui/SMESH/images/blsurf_parameters_enforced_vertices.png
index be0536d83..b9a665afc 100644
Binary files a/doc/salome/gui/SMESH/images/blsurf_parameters_enforced_vertices.png and b/doc/salome/gui/SMESH/images/blsurf_parameters_enforced_vertices.png differ
diff --git a/doc/salome/gui/SMESH/input/blsurf_hypo.doc b/doc/salome/gui/SMESH/input/blsurf_hypo.doc
index 6a5467599..7e7a4f45a 100644
--- a/doc/salome/gui/SMESH/input/blsurf_hypo.doc
+++ b/doc/salome/gui/SMESH/input/blsurf_hypo.doc
@@ -417,7 +417,8 @@ The enforced vertex is the projection of a point defined by its
 <li>If a group name is specified, the enforced nodes will be added in the group. If the group does not exist it will be created.
 </ul>
 
-You can specify BLSURF to use the internal vertices of the faces as enforced vertices by checking <i>Use internal vertices</i>.
+You can specify BLSURF to use the internal vertices of the faces as enforced vertices by checking <i>Use internal vertices of all faces</i>.
+If a group name is specified, the internal enforced nodes will be added in the group. If the group does not exist it will be created.
 
 <br><b>See Also</b> a sample TUI Script of the \ref tui_blsurf "creation of a BLSurf hypothesis", including enforced vertices.