diff --git a/sakura_core/cmd/CViewCommander_Edit.cpp b/sakura_core/cmd/CViewCommander_Edit.cpp
index fbe2b8cf31..6af3767297 100644
--- a/sakura_core/cmd/CViewCommander_Edit.cpp
+++ b/sakura_core/cmd/CViewCommander_Edit.cpp
@@ -857,6 +857,7 @@ void CViewCommander::Command_DELETE_BACK( void )
 									GetCaret().GetCaretLogicPos()
 								)
 							);
+							GetDocument()->m_cDocEditor.m_nOpeBlkRedawCount++;
 						}
 						m_pCommanderView->DeleteData( true );
 					}