diff --git a/src/SMESHGUI/SMESHGUI_Hypotheses.cxx b/src/SMESHGUI/SMESHGUI_Hypotheses.cxx
index 30aeaa3c8..6276d0677 100644
--- a/src/SMESHGUI/SMESHGUI_Hypotheses.cxx
+++ b/src/SMESHGUI/SMESHGUI_Hypotheses.cxx
@@ -557,14 +557,13 @@ QString SMESHGUI_GenericHypothesisCreator::helpPage() const
     aHelpFileName = "segments_around_vertex_algo_page.html";
   else if ( aHypType == "QuadrangleParams")
     aHelpFileName = "a2d_meshing_hypo_page.html#hypo_quad_params_anchor";
+  else if ( aHypType == "ViscousLayers")
+    aHelpFileName = "additional_hypo_page.html#viscous_layers_anchor";
   else if ( aHypType == "ImportSource1D" || aHypType == "ImportSource2D")
     aHelpFileName = "import_algos_page.html";
   return aHelpFileName;
 }
 
-
-
-
 SMESHGUI_HypothesisDlg::SMESHGUI_HypothesisDlg( SMESHGUI_GenericHypothesisCreator* creator, QWidget* parent )
 : QtxDialog( parent, false, true ),
   myCreator( creator )