diff --git a/hurricane/src/hviewer/hurricane/viewer/CellWidget.h b/hurricane/src/hviewer/hurricane/viewer/CellWidget.h
index ece12979..54775535 100644
--- a/hurricane/src/hviewer/hurricane/viewer/CellWidget.h
+++ b/hurricane/src/hviewer/hurricane/viewer/CellWidget.h
@@ -141,6 +141,7 @@ namespace Hurricane {
       inline  Command*                getActiveCommand           () const;
       inline  void                    resetActiveCommand         ();
       inline  void                    setCursorStep              ( DbU::Unit );
+      inline  void                    setRealSnapGridStep        ( DbU::Unit step );
       inline  bool                    realMode                   () const;
       inline  bool                    symbolicMode               () const;
       inline  bool                    showBoundaries             () const;
@@ -1052,6 +1053,10 @@ namespace Hurricane {
   { _state->setCursorStep(step); }
 
 
+  inline void  CellWidget::setRealSnapGridStep ( DbU::Unit step )
+  { DbU::setRealSnapGridStep(step); }
+
+
   inline shared_ptr<CellWidget::State>& CellWidget::getState ()
   {
     _state->setTopLeft ( getTopLeft() );