diff --git a/PowerEditor/src/NppIO.cpp b/PowerEditor/src/NppIO.cpp
index 7175c2aa..5f516250 100644
--- a/PowerEditor/src/NppIO.cpp
+++ b/PowerEditor/src/NppIO.cpp
@@ -54,7 +54,7 @@ DWORD WINAPI Notepad_plus::monitorFileOnChange(void * params)
 
 	::PathRemoveFileSpecW(folderToMonitor);
 	
-	const DWORD dwNotificationFlags = FILE_NOTIFY_CHANGE_LAST_WRITE | FILE_NOTIFY_CHANGE_FILE_NAME;
+	const DWORD dwNotificationFlags = FILE_NOTIFY_CHANGE_LAST_WRITE | FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_SIZE;
 
 	// Create the monitor and add directory to watch.
 	CReadDirectoryChanges changes;