diff --git a/windows/ztypes_windows.go b/windows/ztypes_windows.go
index 2fe0745b..5d61194c 100644
--- a/windows/ztypes_windows.go
+++ b/windows/ztypes_windows.go
@@ -195,14 +195,15 @@ const (
 )
 
 const (
-	// do not reorder
-	FILE_NOTIFY_CHANGE_FILE_NAME = 1 << iota
-	FILE_NOTIFY_CHANGE_DIR_NAME
-	FILE_NOTIFY_CHANGE_ATTRIBUTES
-	FILE_NOTIFY_CHANGE_SIZE
-	FILE_NOTIFY_CHANGE_LAST_WRITE
-	FILE_NOTIFY_CHANGE_LAST_ACCESS
-	FILE_NOTIFY_CHANGE_CREATION
+	// filters for ReadDirectoryChangesW
+	FILE_NOTIFY_CHANGE_FILE_NAME   = 0x001
+	FILE_NOTIFY_CHANGE_DIR_NAME    = 0x002
+	FILE_NOTIFY_CHANGE_ATTRIBUTES  = 0x004
+	FILE_NOTIFY_CHANGE_SIZE        = 0x008
+	FILE_NOTIFY_CHANGE_LAST_WRITE  = 0x010
+	FILE_NOTIFY_CHANGE_LAST_ACCESS = 0x020
+	FILE_NOTIFY_CHANGE_CREATION    = 0x040
+	FILE_NOTIFY_CHANGE_SECURITY    = 0x100
 )
 
 const (