diff --git a/jni/Application.mk b/jni/Application.mk
index 402fbfe3..d8820faa 100644
--- a/jni/Application.mk
+++ b/jni/Application.mk
@@ -1,4 +1,4 @@
 APP_ABI      			:= armeabi-v7a x86
 APP_PLATFORM 			:= android-16
 APP_STL      			:= stlport_static
-NDK_TOOLCHAIN_VERSION 	:= 4.8
+NDK_TOOLCHAIN_VERSION 	:= 4.9
diff --git a/src/main/AndroidManifest.xml b/src/main/AndroidManifest.xml
index 1864ccdb..c5c137fd 100644
--- a/src/main/AndroidManifest.xml
+++ b/src/main/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.github.shadowsocks"
-    android:versionCode="76"
-    android:versionName="2.3.1">
+    android:versionCode="77"
+    android:versionName="2.3.2">
 
   <uses-permission android:name="android.permission.INTERNET"/>
   <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
diff --git a/src/main/scala/com/github/shadowsocks/Shadowsocks.scala b/src/main/scala/com/github/shadowsocks/Shadowsocks.scala
index 34a52528..888421ca 100644
--- a/src/main/scala/com/github/shadowsocks/Shadowsocks.scala
+++ b/src/main/scala/com/github/shadowsocks/Shadowsocks.scala
@@ -335,12 +335,14 @@ class Shadowsocks
 
     Console.runCommand(ab.toArray)
 
-    ab.clear()
-    ab.append("kill -9 `cat /data/data/com.github.shadowsocks/redsocks.pid`")
-    ab.append("rm /data/data/com.github.shadowsocks/redsocks.conf")
-    ab.append(Utils.getIptables + " -t nat -F OUTPUT")
+    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+      ab.clear()
+      ab.append("kill -9 `cat /data/data/com.github.shadowsocks/redsocks.pid`")
+      ab.append("rm /data/data/com.github.shadowsocks/redsocks.conf")
+      ab.append(Utils.getIptables + " -t nat -F OUTPUT")
 
-    Console.runRootCommand(ab.toArray)
+      Console.runRootCommand(ab.toArray)
+    }
   }
 
   private def getVersionName: String = {