diff --git a/src/se/vidstige/jadb/SyncTransport.java b/src/se/vidstige/jadb/SyncTransport.java
index 8748e6d..824e0bc 100644
--- a/src/se/vidstige/jadb/SyncTransport.java
+++ b/src/se/vidstige/jadb/SyncTransport.java
@@ -11,11 +11,6 @@ public class SyncTransport {
     private final DataOutput output;
     private final DataInput input;
 
-    public SyncTransport(OutputStream outputStream, InputStream inputStream) {
-        output = new DataOutputStream(outputStream);
-        input = new DataInputStream(inputStream);
-    }
-
     public SyncTransport(DataOutput outputStream, DataInput inputStream) {
         output = outputStream;
         input = inputStream;
diff --git a/src/se/vidstige/jadb/Transport.java b/src/se/vidstige/jadb/Transport.java
index 2196b86..6ce363d 100644
--- a/src/se/vidstige/jadb/Transport.java
+++ b/src/se/vidstige/jadb/Transport.java
@@ -8,10 +8,14 @@ class Transport implements Closeable {
 
     private final OutputStream outputStream;
     private final InputStream inputStream;
+    private final DataInputStream dataInput;
+    private final DataOutputStream dataOutput;
 
     private Transport(OutputStream outputStream, InputStream inputStream) {
         this.outputStream = outputStream;
         this.inputStream = inputStream;
+        this.dataInput = new DataInputStream(inputStream);
+        this.dataOutput = new DataOutputStream(outputStream);
     }
 
     public Transport(Socket socket) throws IOException {
@@ -41,9 +45,8 @@ class Transport implements Closeable {
     }
 
     public String readString(int length) throws IOException {
-        DataInput reader = new DataInputStream(inputStream);
         byte[] responseBuffer = new byte[length];
-        reader.readFully(responseBuffer);
+        dataInput.readFully(responseBuffer);
         return new String(responseBuffer, StandardCharsets.UTF_8);
     }
 
@@ -61,12 +64,12 @@ class Transport implements Closeable {
     public SyncTransport startSync() throws IOException, JadbException {
         send("sync:");
         verifyResponse();
-        return new SyncTransport(outputStream, inputStream);
+        return new SyncTransport(dataOutput, dataInput);
     }
 
     @Override
     public void close() throws IOException {
-        inputStream.close();
-        outputStream.close();
+        dataInput.close();
+        dataOutput.close();
     }
 }