diff --git a/lib/ioki/model/operator/reporting/report_navigation/item.rb b/lib/ioki/model/operator/reporting/report_navigation/item.rb
index 86824c05..afb16918 100644
--- a/lib/ioki/model/operator/reporting/report_navigation/item.rb
+++ b/lib/ioki/model/operator/reporting/report_navigation/item.rb
@@ -21,6 +21,10 @@ class Item < Base
             attribute :description,
                       on:   :read,
                       type: :string
+
+            attribute :has_aggregations,
+                      on:   :read,
+                      type: :boolean
           end
         end
       end