diff --git a/src/main/java/org/gcube/accounting/datamodel/implementations/PortletUsageRecord.java b/src/main/java/org/gcube/accounting/datamodel/implementations/PortletUsageRecord.java
index 20e623b..01c1da8 100644
--- a/src/main/java/org/gcube/accounting/datamodel/implementations/PortletUsageRecord.java
+++ b/src/main/java/org/gcube/accounting/datamodel/implementations/PortletUsageRecord.java
@@ -32,7 +32,6 @@ public class PortletUsageRecord extends RawUsageRecord implements SingleUsageRec
 	public static final String PORTLET_ID = "portletId";
 	@RequiredField @NotEmpty
 	public static final String OPERATION_ID = "operationId";
-	// TODO check ASL for more field
 	@NotEmptyIfNotNull
 	public static final String MESSAGE = "message";