diff --git a/bt5/erp5_project/SkinTemplateItem/portal_skins/erp5_project/TaskReportModule_viewTaskReportList/listbox.xml b/bt5/erp5_project/SkinTemplateItem/portal_skins/erp5_project/TaskReportModule_viewTaskReportList/listbox.xml
index 425d08dae0fe3da875ea8c6db9f38d830b971e5d..df2f1ee0fe09adc59f3f282f2b8eabacf5aff45b 100644
--- a/bt5/erp5_project/SkinTemplateItem/portal_skins/erp5_project/TaskReportModule_viewTaskReportList/listbox.xml
+++ b/bt5/erp5_project/SkinTemplateItem/portal_skins/erp5_project/TaskReportModule_viewTaskReportList/listbox.xml
@@ -106,6 +106,14 @@
                           <string>reference</string>
                           <string>Reference</string>
                         </tuple>
+                        <tuple>
+                          <string>creation_date</string>
+                          <string>Creation Date</string>
+                        </tuple>
+                        <tuple>
+                          <string>modification_date</string>
+                          <string>Modification Date</string>
+                        </tuple>
                       </list>
                     </value>
                 </item>