diff --git a/idl/GEOM_Shape.idl b/idl/GEOM_Shape.idl
index b9091a0ed..a75c3486c 100644
--- a/idl/GEOM_Shape.idl
+++ b/idl/GEOM_Shape.idl
@@ -78,6 +78,8 @@ module GEOM
     // the generator engine
     GEOM_Gen Engine();
    
+    // Get the TopoDS_Shape, for colocated case only
+    long getShape();
   };
 };
 #endif