diff --git a/src/main/scala/com/github/shadowsocks/database/DBHelper.scala b/src/main/scala/com/github/shadowsocks/database/DBHelper.scala
index efbc7579..80e7ca5a 100644
--- a/src/main/scala/com/github/shadowsocks/database/DBHelper.scala
+++ b/src/main/scala/com/github/shadowsocks/database/DBHelper.scala
@@ -130,10 +130,10 @@ class DBHelper(val context: Context)
       if (oldVersion < 17) {
         profileDao.executeRawNoArgs("ALTER TABLE `profile` ADD COLUMN kcp SMALLINT;")
         profileDao.executeRawNoArgs("ALTER TABLE `profile` ADD COLUMN kcpcli VARCHAR DEFAULT " +
-          "'--crypt none --mode normal --mtu 1200 --nocomp --dscp 46 -datashard 10 -parityshard 0';")
+          "'--crypt none --mode normal --mtu 1200 --nocomp --dscp 46 --parityshard 0';")
       } else if (oldVersion < 20) {
         profileDao.executeRawNoArgs("UPDATE `profile` SET kcpcli = '--crypt none --mode normal --mtu 1200 --nocomp " +
-          "--dscp 46 -datashard 10 -parityshard 0' WHERE kcpcli IS NULL;")
+          "--dscp 46 --parityshard 0' WHERE kcpcli IS NULL;")
       }
 
       if (oldVersion < 18) {
diff --git a/src/main/scala/com/github/shadowsocks/database/Profile.scala b/src/main/scala/com/github/shadowsocks/database/Profile.scala
index 279aa453..6699dda0 100644
--- a/src/main/scala/com/github/shadowsocks/database/Profile.scala
+++ b/src/main/scala/com/github/shadowsocks/database/Profile.scala
@@ -106,7 +106,7 @@ class Profile {
   var kcpPort: Int = 8399
 
   @DatabaseField
-  var kcpcli: String = "--crypt none --mode normal --mtu 1200 --nocomp --dscp 46 -datashard 10 -parityshard 0"
+  var kcpcli: String = "--crypt none --mode normal --mtu 1200 --nocomp --dscp 46 --parityshard 0"
 
   override def toString = "ss://" + Base64.encodeToString("%s%s:%s@%s:%d".formatLocal(Locale.ENGLISH,
     method, if (auth) "-auth" else "", password, host, remotePort).getBytes, Base64.NO_PADDING | Base64.NO_WRAP)