diff --git a/Build/build-domestic-direct-lan-ruleset-dns-mapping-module.ts b/Build/build-domestic-direct-lan-ruleset-dns-mapping-module.ts
index af53a821..9def7cf6 100644
--- a/Build/build-domestic-direct-lan-ruleset-dns-mapping-module.ts
+++ b/Build/build-domestic-direct-lan-ruleset-dns-mapping-module.ts
@@ -71,10 +71,7 @@ export const getDomesticAndDirectDomainsRulesetPromise = once(async () => {
 
   Object.values(LAN).forEach(({ domains }) => {
     appendArrayInPlace(directs, domains.flatMap(getDnsMappingRuleWithWildcard));
-  });
-
-  // backward compatible, add lan.conf
-  Object.values(LAN).forEach(({ domains }) => {
+    // backward compatible, add lan.conf
     appendArrayInPlace(lans, domains.flatMap(getDnsMappingRuleWithWildcard));
   });