diff --git a/src/GEOMToolsGUI/GEOMToolsGUI.cxx b/src/GEOMToolsGUI/GEOMToolsGUI.cxx
index 5eddb4047..a977323fc 100644
--- a/src/GEOMToolsGUI/GEOMToolsGUI.cxx
+++ b/src/GEOMToolsGUI/GEOMToolsGUI.cxx
@@ -396,11 +396,10 @@ bool GEOMToolsGUI::OnGUIEvent(int theCommandID, QAD_Desktop* parent)
       }
     case 8033: // TRANSPARENCY - POPUP VIEWER
       {
-	OCCViewer_Viewer3d* v3d;
 	Handle(AIS_InteractiveContext) ic;
-	if(QAD_Application::getDesktop()->getActiveStudy()->getActiveStudyFrame()->getTypeView() > VIEW_OCC) {
+	if(QAD_Application::getDesktop()->getActiveStudy()->getActiveStudyFrame()->getTypeView() == VIEW_OCC) {
 	  OCCViewer_Viewer3d* v3d = ((OCCViewer_ViewFrame*)QAD_Application::getDesktop()->getActiveStudy()->getActiveStudyFrame()->getRightFrame()->getViewFrame())->getViewer();
-	  Handle (AIS_InteractiveContext) ic = v3d->getAISContext();
+	  ic = v3d->getAISContext();
 	}
 	GEOMBase_TransparencyDlg *aDlg = new GEOMBase_TransparencyDlg(parent, "", Sel, ic);
 	break;
diff --git a/src/GEOMToolsGUI/GEOMToolsGUI_TransparencyDlg.cxx b/src/GEOMToolsGUI/GEOMToolsGUI_TransparencyDlg.cxx
index 6fab217a5..122cc9848 100644
--- a/src/GEOMToolsGUI/GEOMToolsGUI_TransparencyDlg.cxx
+++ b/src/GEOMToolsGUI/GEOMToolsGUI_TransparencyDlg.cxx
@@ -30,6 +30,7 @@ using namespace std;
 
 #include "QAD_RightFrame.h"
 #include "SALOME_ListIteratorOfListIO.hxx"
+#include "OCCViewer_Viewer3d.h"
 #include <AIS_InteractiveContext.hxx>
 
 #include <qframe.h>
@@ -221,6 +222,8 @@ void GEOMBase_TransparencyDlg::ValueHasChanged(int newValue)
     }
 
     QApplication::setOverrideCursor(Qt::waitCursor);
+    OCCViewer_Viewer3d* v3d = ((OCCViewer_ViewFrame*)QAD_Application::getDesktop()->getActiveStudy()->getActiveStudyFrame()->getRightFrame()->getViewFrame())->getViewer();
+    Handle (AIS_InteractiveContext) ic = v3d->getAISContext();
     for(;It.More(); It.Next()) {
       Handle(SALOME_InteractiveObject) IObject = It.Value();
       Standard_Boolean found;
@@ -229,10 +232,10 @@ void GEOMBase_TransparencyDlg::ValueHasChanged(int newValue)
 	QApplication::restoreOverrideCursor();
 	return;
       }
-      this->myIc->SetTransparency(Shape, newValue / 10.0, false);
-      myIc->Redisplay(Shape, Standard_False, Standard_True);
+      ic->SetTransparency(Shape, newValue / 10.0, false);
+      ic->Redisplay(Shape, Standard_False, Standard_True);
     }
-    myIc->UpdateCurrentViewer();
+    ic->UpdateCurrentViewer();
   }
   QApplication::restoreOverrideCursor();
   return;