diff --git a/owncloudComLibrary/src/main/java/com/owncloud/android/lib/common/network/ChunkFromFileRequestBody.java b/owncloudComLibrary/src/main/java/com/owncloud/android/lib/common/network/ChunkFromFileRequestBody.java
index 53abaf9a..40f168ea 100644
--- a/owncloudComLibrary/src/main/java/com/owncloud/android/lib/common/network/ChunkFromFileRequestBody.java
+++ b/owncloudComLibrary/src/main/java/com/owncloud/android/lib/common/network/ChunkFromFileRequestBody.java
@@ -84,18 +84,12 @@ public class ChunkFromFileRequestBody extends FileRequestBody {
             long maxCount = Math.min(mOffset + mChunkSize, mChannel.size());
             while (mChannel.position() < maxCount) {
 
-                Timber.v("Sink buffer size: %s", sink.buffer().size());
-
                 readCount = mChannel.read(mBuffer);
 
-                Timber.v("Read " + readCount + " bytes from file channel to " + mBuffer.toString());
-
-                sink.buffer().write(mBuffer.array(), 0, readCount);
+                sink.getBuffer().write(mBuffer.array(), 0, readCount);
 
                 sink.flush();
 
-                Timber.v("Write " + readCount + " bytes to sink buffer with size " + sink.buffer().size());
-
                 mBuffer.clear();
                 if (mTransferred < maxCount) {  // condition to avoid accumulate progress for repeated chunks
                     mTransferred += readCount;