diff --git a/kernel/api/system.go b/kernel/api/system.go
index 14c986b32..daf85c72a 100644
--- a/kernel/api/system.go
+++ b/kernel/api/system.go
@@ -283,6 +283,7 @@ func exportConf(c *gin.Context) {
 		clonedConf.System.Container = ""
 		clonedConf.System.IsMicrosoftStore = false
 		clonedConf.System.IsInsider = false
+		clonedConf.System.MicrosoftDefenderExcluded = false
 	}
 	clonedConf.Sync = nil
 	clonedConf.Stat = nil