diff --git a/resources/NETGENPlugin.xml b/resources/NETGENPlugin.xml
index 5bb393e..f57d621 100644
--- a/resources/NETGENPlugin.xml
+++ b/resources/NETGENPlugin.xml
@@ -164,17 +164,4 @@
 
   </algorithms>
 </meshers-group>
-
-<hypotheses-set-group>
-
-    <hypotheses-set name ="Automatic Tetrahedralization"
-                    hypos="NETGEN_Parameters"
-                    algos="NETGEN_2D3D"/>
-
-    <hypotheses-set name ="Automatic Triangulation"
-                    hypos="NETGEN_Parameters_2D"
-                    algos="NETGEN_2D"/>
-
-</hypotheses-set-group>
-
 </meshers>
diff --git a/src/NETGENPlugin/NETGENPlugin_Hypothesis.cxx b/src/NETGENPlugin/NETGENPlugin_Hypothesis.cxx
index b9826db..c1c7ffe 100644
--- a/src/NETGENPlugin/NETGENPlugin_Hypothesis.cxx
+++ b/src/NETGENPlugin/NETGENPlugin_Hypothesis.cxx
@@ -666,5 +666,13 @@ bool NETGENPlugin_Hypothesis::SetParametersByDefaults(const TDefaults&  dflts,
   else if ( theMesh && theMesh->HasShapeToMesh() )
     _minSize    = NETGENPlugin_Mesher::GetDefaultMinSize( theMesh->GetShapeToMesh(), _maxSize );
 
+  if ( dflts._way == SMESH_Hypothesis::BY_AVERAGE_LENGTH )
+  {
+    _minSize      = dflts._elemLength / 100.;
+    _chordalError = dflts._elemLength / 2.;
+    _chordalErrorEnabled = true;
+    _quadAllowed  = dflts._quadDominated;
+  }
+
   return _nbSegPerEdge && _maxSize > 0;
 }