diff --git a/app/app.iml b/app/app.iml
index 3e0406e000b06c1ab415da42907944da98b739af..36e342e82c540dccec979e2f66d32b545d6eff1c 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -134,7 +134,6 @@
     <orderEntry type="library" name="com.google.code.gson:gson:2.8.1@jar" level="project" />
     <orderEntry type="library" name="android.arch.lifecycle:runtime-1.0.0" level="project" />
     <orderEntry type="library" name="com.android.support:appcompat-v7-26.1.0" level="project" />
-    <orderEntry type="library" name="anon:ANONVPNlib:00.01.056-SNAPSHOT:android@jar" level="project" />
     <orderEntry type="library" name="com.android.support:support-annotations:26.1.0@jar" level="project" />
     <orderEntry type="library" name="com.android.support:support-core-utils-26.1.0" level="project" />
     <orderEntry type="library" name="com.android.support:support-core-ui-26.1.0" level="project" />
@@ -146,6 +145,7 @@
     <orderEntry type="library" scope="TEST" name="com.android.support.test:rules-0.5" level="project" />
     <orderEntry type="library" name="android.arch.core:common:1.0.0@jar" level="project" />
     <orderEntry type="library" scope="TEST" name="org.hamcrest:hamcrest-library:1.3@jar" level="project" />
+    <orderEntry type="library" name="anon:ANONVPNlib:00.01.057-SNAPSHOT:android@jar" level="project" />
     <orderEntry type="library" scope="TEST" name="org.hamcrest:hamcrest-integration:1.3@jar" level="project" />
     <orderEntry type="library" scope="TEST" name="com.android.support.test:runner-0.5" level="project" />
     <orderEntry type="library" name="anon:SkypeForANON:0.0.9-SNAPSHOT:android@jar" level="project" />
diff --git a/app/build.gradle b/app/build.gradle
index 2db9d8c629523d18c66da02a85b6cfddb2eacd6a..e36e357a88a20db7b063d6ba0a3ab92b288d3e29 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -69,7 +69,7 @@ dependencies {
     testCompile 'junit:junit:4.12'
     compile 'org.osmdroid:osmdroid-android:5.6.5'
 
-    def anonvpnlib_version="00.01.056"
+    def anonvpnlib_version="00.01.057"
     def anonlib_version="00.20.043"
 
     debugCompile("anon:ANONVPNlib:${anonvpnlib_version}-SNAPSHOT:android") {
diff --git a/app/src/main/java/anonvpn/anon_next/android/AndroidVpnService.java b/app/src/main/java/anonvpn/anon_next/android/AndroidVpnService.java
index 255008a70f413cc151e40db2ebf6d7d8efb63823..3e0baa914c04a7948456199dd80f90dc4048c74f 100644
--- a/app/src/main/java/anonvpn/anon_next/android/AndroidVpnService.java
+++ b/app/src/main/java/anonvpn/anon_next/android/AndroidVpnService.java
@@ -39,7 +39,7 @@ public class AndroidVpnService extends VpnService
 		ParcelFileDescriptor mTunnelingDevice = null;
 
 		// TODO: Find a way to adapt the MTU to the block size of the ANON protocol
-		int TUNNELING_MTU = 1500;
+		final private static int TUNNELING_MTU = 1500;
 
 		AndroidNetworkFactory mNetworkFactory = null;
 
diff --git a/app/src/main/java/anonvpn/anon_next/android/service/networking/AndroidTunnelingInterface.java b/app/src/main/java/anonvpn/anon_next/android/service/networking/AndroidTunnelingInterface.java
index 1b716b176140786c82cded948e6e797732599d33..5416cc57a3191e039c289396a55c30ae358a7773 100644
--- a/app/src/main/java/anonvpn/anon_next/android/service/networking/AndroidTunnelingInterface.java
+++ b/app/src/main/java/anonvpn/anon_next/android/service/networking/AndroidTunnelingInterface.java
@@ -54,7 +54,6 @@ final public class AndroidTunnelingInterface extends AbstractTunnelingDevice
 		protected void write_implementation(byte[] ar, int off, int len) throws IOException
 			{
 				m_streamTunOutput.write(ar,off,len);
-				m_streamTunOutput.flush();
 			}
 
 		@Override