diff --git a/src/SMESHGUI/SMESHGUI.cxx b/src/SMESHGUI/SMESHGUI.cxx
index 2acae5a7f..d71d522df 100644
--- a/src/SMESHGUI/SMESHGUI.cxx
+++ b/src/SMESHGUI/SMESHGUI.cxx
@@ -3102,6 +3102,6 @@ LightApp_Operation* SMESHGUI::createOperation( const int id ) const
 LightApp_Displayer* SMESHGUI::displayer()
 {
   if( !myDisplayer )
-    myDisplayer = new SMESHGUI_Displayer( dynamic_cast<SalomeApp_Study*>( getApp()->activeStudy() ) );
+    myDisplayer = new SMESHGUI_Displayer( getApp() );
   return myDisplayer;
 }
diff --git a/src/SMESHGUI/SMESHGUI_Displayer.cxx b/src/SMESHGUI/SMESHGUI_Displayer.cxx
index 386b54bbc..6d205706e 100644
--- a/src/SMESHGUI/SMESHGUI_Displayer.cxx
+++ b/src/SMESHGUI/SMESHGUI_Displayer.cxx
@@ -30,12 +30,13 @@
 #include "SMESHGUI_VTKUtils.h"
 
 #include <SalomeApp_Study.h>
+#include <SalomeApp_Application.h>
 #include <SVTK_ViewModel.h>
 #include <SVTK_ViewWindow.h>
 
-SMESHGUI_Displayer::SMESHGUI_Displayer( SalomeApp_Study* st )
+SMESHGUI_Displayer::SMESHGUI_Displayer( SalomeApp_Application* app )
 : LightApp_Displayer(),
-  myStudy( st )
+  myApp( app )
 {
 }
 
@@ -57,7 +58,7 @@ SALOME_Prs* SMESHGUI_Displayer::buildPresentation( const QString& entry, SALOME_
       SUIT_ViewWindow* wnd = vtk_viewer->getViewManager()->getActiveView();
       SMESH_Actor* anActor = SMESH::FindActorByEntry( wnd, entry.latin1() );
       if( !anActor )
-	anActor = SMESH::CreateActor( myStudy->studyDS(), entry.latin1(), true );
+	anActor = SMESH::CreateActor( study()->studyDS(), entry.latin1(), true );
       if( anActor )
       {
 	SMESH::DisplayActor( wnd, anActor );
@@ -72,3 +73,8 @@ SALOME_Prs* SMESHGUI_Displayer::buildPresentation( const QString& entry, SALOME_
 
   return prs;
 }
+
+SalomeApp_Study* SMESHGUI_Displayer::study() const
+{
+  return dynamic_cast<SalomeApp_Study*>( myApp->activeStudy() );
+}
diff --git a/src/SMESHGUI/SMESHGUI_Displayer.h b/src/SMESHGUI/SMESHGUI_Displayer.h
index e4be5fdde..4b4e3eea0 100644
--- a/src/SMESHGUI/SMESHGUI_Displayer.h
+++ b/src/SMESHGUI/SMESHGUI_Displayer.h
@@ -31,18 +31,22 @@
 
 #include <LightApp_Displayer.h>
 
+class SalomeApp_Application;
 class SalomeApp_Study;
 
 class SMESHGUI_Displayer : public LightApp_Displayer
 {
 public:
-  SMESHGUI_Displayer( SalomeApp_Study* );
+  SMESHGUI_Displayer( SalomeApp_Application* );
   ~SMESHGUI_Displayer();
 
   virtual SALOME_Prs* buildPresentation( const QString&, SALOME_View* = 0 );
 
+protected:
+  SalomeApp_Study* study() const;
+
 private:
-  SalomeApp_Study*   myStudy;
+  SalomeApp_Application*   myApp;
 };
 
 #endif