diff --git a/src/main/java/org/gcube/portlets/user/workspace/server/LocalUploadServlet.java b/src/main/java/org/gcube/portlets/user/workspace/server/LocalUploadServlet.java
index e5b04e0..ef3f567 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/server/LocalUploadServlet.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/server/LocalUploadServlet.java
@@ -324,8 +324,7 @@ public class LocalUploadServlet extends HttpServlet {
 		if(!isOverwrite){
 			//we need to recalculate the item name
 			itemName = WorkspaceUtil.getUniqueName(itemName, destinationFolder);
-			logger.trace("before calling createExternalFile - itemName is: "+itemName);
-			logger.trace("before calling createExternalFile - contentType is: "+contentType);
+			logger.trace("before calling createExternalFile - [itemName: "+itemName+", contentType: "+contentType+"]");
 			createdItem = WorkspaceUtil.createExternalFile(destinationFolder, itemName, "", contentType, uploadItem);
 			if(createdItem!=null)
 				logger.info("Item "+createdItem.getName() + " uploaded correctly");