diff --git a/src/main/webapp/app/mainMenu.zul b/src/main/webapp/app/mainMenu.zul
index 18e917dc..f131a68c 100644
--- a/src/main/webapp/app/mainMenu.zul
+++ b/src/main/webapp/app/mainMenu.zul
@@ -75,7 +75,8 @@
 					disabled="${not sec:isAllGranted('PERM_EDIT_WORKFLOW')}" />
 				<menuitem
 					label="${labels.NumberSeries}…"
-					onClick="@command('numSeries')" />
+					onClick="@command('numSeries')"
+					disabled="${not sec:isAllGranted('ROLE_ADMIN')}"/>
 				<menu label="${labels.Administration}">
 					<menupopup>
 						<menuitem