diff --git a/scripts/menus/2_settings.sh b/scripts/menus/2_settings.sh
index d0d57922..1eb28e1a 100644
--- a/scripts/menus/2_settings.sh
+++ b/scripts/menus/2_settings.sh
@@ -7,7 +7,10 @@ __IS_MODULE_2_SETTINGS_LOADED=1
 settings() { #功能设置
     #获取设置默认显示
     [ -z "$skip_cert" ] && skip_cert=ON
-	[ -z "$sniffer" ] && sniffer=OFF
+	[ -z "$sniffer" ] && {
+		sniffer=OFF
+		echo "$crashcore" | grep -q 'singbox' && sniffer=ON
+	}
 	[ -z "$dns_mod" ] && dns_mod='redir_host'
     #
     echo "-----------------------------------------------"
diff --git a/scripts/starts/singbox_modify.sh b/scripts/starts/singbox_modify.sh
index e1c02052..0ee8eeec 100644
--- a/scripts/starts/singbox_modify.sh
+++ b/scripts/starts/singbox_modify.sh
@@ -200,7 +200,7 @@ EOF
 EOF
     #生成add_route.json
     #域名嗅探配置
-    [ "$sniffer" = ON ] && sniffer_set='{ "action": "sniff", "timeout": "500ms" },'
+    [ "$sniffer" != OFF ] && sniffer_set='{ "action": "sniff", "timeout": "500ms" },'
 	[ "$ts_service" = ON ] && tailscale_set='{ "inbound": [ "ts-ep" ], "port": 53, "action": "hijack-dns" },'
     cat >"$TMPDIR"/jsons/add_route.json <<EOF
 {