diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/TransportManager.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/TransportManager.java
index e754342..0c4d1d5 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/TransportManager.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/TransportManager.java
@@ -155,10 +155,11 @@ public abstract class TransportManager {
 	/**
 	 * get the size of the remote file
 	 * @param bucket identifies the remote file path
+	 * @param myFile the file wrapper
 	 * @return the size of the remote file
 	 * @throws UnknownHostException
 	 */
-	public abstract long getSize(String bucket); 
+	public abstract long getSize(String bucket, MyFile myFile); 
 
 	/**
 	 * lock a remote file