diff --git a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/plugin/BucketOperator.java b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/plugin/BucketOperator.java
index 97dae47..d308eef 100644
--- a/src/main/java/org/gcube/contentmanagement/blobstorage/transport/plugin/BucketOperator.java
+++ b/src/main/java/org/gcube/contentmanagement/blobstorage/transport/plugin/BucketOperator.java
@@ -6,7 +6,6 @@ import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Paths;
-import java.util.List;
 import java.util.Objects;
 
 import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;