diff --git a/navalplanner-webapp/src/main/webapp/calendars/_edition.zul b/navalplanner-webapp/src/main/webapp/calendars/_edition.zul
index 8ac3d2685..35aaa2f96 100644
--- a/navalplanner-webapp/src/main/webapp/calendars/_edition.zul
+++ b/navalplanner-webapp/src/main/webapp/calendars/_edition.zul
@@ -233,7 +233,8 @@
                       itemRenderer="@{calendarController.editionController.historyVersionsRenderer}"
                       sizedByContent="true">
                       <listhead>
-                        <listheader label="${i18n:_('Parent')}" width="80px"/>
+                        <listheader label="${i18n:_('Parent')}" width="80px"
+                            visible="@{calendarController.editionController.isDerived}"/>
                         <listheader label="${i18n:_('Valid from')}"
                           width="80px" />
                         <listheader label="${i18n:_('Expiry date')}"