diff --git a/src/main/java/org/gcube/portlets/user/dataminermanager/client/events/SyncRefreshUploadDataSpaceEvent.java b/src/main/java/org/gcube/portlets/user/dataminermanager/client/events/SyncRefreshUploadDataSpaceEvent.java
index 500c445..dac38d7 100644
--- a/src/main/java/org/gcube/portlets/user/dataminermanager/client/events/SyncRefreshUploadDataSpaceEvent.java
+++ b/src/main/java/org/gcube/portlets/user/dataminermanager/client/events/SyncRefreshUploadDataSpaceEvent.java
@@ -1,7 +1,5 @@
 package org.gcube.portlets.user.dataminermanager.client.events;
 
-import org.gcube.portlets.user.dataminermanager.client.type.DataMinerWorkAreaElementType;
-
 import com.google.gwt.event.shared.EventHandler;
 import com.google.gwt.event.shared.GwtEvent;
 import com.google.gwt.event.shared.HandlerRegistration;