diff --git a/src/main/java/org/gcube/portlets/user/workspace/client/AppControllerExplorer.java b/src/main/java/org/gcube/portlets/user/workspace/client/AppControllerExplorer.java
index 51ef257..09f8927 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/client/AppControllerExplorer.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/client/AppControllerExplorer.java
@@ -1116,6 +1116,11 @@ public class AppControllerExplorer implements EventHandler, TreeAppControllerInt
 						GWT.log("Upload Aborted: [parentID: "+parentId+", itemId: "+itemId+"]");
 						
 					}
+
+					@Override
+					public void onOverwriteCompleted(String parentId, String itemId) {
+						GWT.log("Upload Override Completed: [parentID: "+parentId+", itemId: "+itemId+"]");
+					}
 				};
 				
 				uploadStream.addWorkspaceUploadNotificationListener(listener);