diff --git a/EgtGeomKernel.rc b/EgtGeomKernel.rc
index 995ffe5..d1eb1fd 100644
Binary files a/EgtGeomKernel.rc and b/EgtGeomKernel.rc differ
diff --git a/GeomDB.cpp b/GeomDB.cpp
index bb82572..bd83b27 100644
--- a/GeomDB.cpp
+++ b/GeomDB.cpp
@@ -1298,6 +1298,15 @@ GeomDB::Erase( GdbObj* pGdbObj)
    if ( pGdbObj == nullptr  ||  pGdbObj == &m_GrpRadix)
       return false ;
 
+  // notifico eventuale UserObj
+   if ( pGdbObj->m_pUserObj != nullptr) {
+     // recupero il successivo
+      const GdbObj* pGdbNext = pGdbObj->GetNext() ;
+      int nNextId = ( pGdbNext != nullptr ? pGdbNext->m_nId : GDB_ID_NULL) ;
+      if ( ! pGdbObj->m_pUserObj->Removing( pGdbObj->GetParentId(), nNextId))
+         return false ;
+   }
+
   // lo tolgo dalla lista
    pGdbObj->Remove() ;