diff --git a/mobile/src/main/java/com/github/shadowsocks/bg/LocalDnsService.kt b/mobile/src/main/java/com/github/shadowsocks/bg/LocalDnsService.kt
index ac8c1e4d04..15dc3a9571 100644
--- a/mobile/src/main/java/com/github/shadowsocks/bg/LocalDnsService.kt
+++ b/mobile/src/main/java/com/github/shadowsocks/bg/LocalDnsService.kt
@@ -62,11 +62,11 @@ object LocalDnsService {
                         .put("MinimumTTL", 120)
                         .put("CacheSize", 4096)
                 val remoteDns = JSONArray(profile.remoteDns.split(",")
-                        .mapIndexed { i, dns -> makeDns("UserDef-$i", dns.trim() + ":53", 9) })
+                        .mapIndexed { i, dns -> makeDns("UserDef-$i", dns.trim() + ":53", 12) })
                 val localDns = JSONArray(arrayOf(
-                        makeDns("Primary-1", "208.67.222.222:443", 3, false),
-                        makeDns("Primary-2", "119.29.29.29:53", 3, false),
-                        makeDns("Primary-3", "114.114.114.114:53", 3, false)
+                        makeDns("Primary-1", "208.67.222.222:443", 9, false),
+                        makeDns("Primary-2", "119.29.29.29:53", 9, false),
+                        makeDns("Primary-3", "114.114.114.114:53", 9, false)
                 ))
 
                 when (profile.route) {