diff --git a/UI/WebServerResources/ContactsUI.js b/UI/WebServerResources/ContactsUI.js
index a61fe724f..d78f37fc0 100644
--- a/UI/WebServerResources/ContactsUI.js
+++ b/UI/WebServerResources/ContactsUI.js
@@ -669,9 +669,9 @@ function onAccessRightsMenuEntryMouseUp(event) {
   var external = selected.getAttribute("external-addressbook");
   var title = this.innerHTML;
   if (external)
-    url = UserFolderURL + "../" + external + "/Contacts/personal/acl";
+    url = UserFolderURL + "../" + external + "/Contacts/personal/acls";
   else
-    url = ApplicationBaseURL + selected.getAttribute("id") + "/acl";
+    url = ApplicationBaseURL + selected.getAttribute("id") + "/acls";
 
   openAclWindow(url, title);
 }
diff --git a/UI/WebServerResources/SchedulerUI.js b/UI/WebServerResources/SchedulerUI.js
index 03605c61a..99908ece3 100644
--- a/UI/WebServerResources/SchedulerUI.js
+++ b/UI/WebServerResources/SchedulerUI.js
@@ -1031,9 +1031,9 @@ function onAccessRightsMenuEntryMouseUp(event) {
   var selected = folders.getSelectedNodes()[0];
   var uid = selected.getAttribute("uid");
   if (uid == UserLogin)
-    url = ApplicationBaseURL + "acl";
+    url = ApplicationBaseURL + "acls";
   else
-    url = UserFolderURL + "../" + uid + "/Calendar/acl";
+    url = UserFolderURL + "../" + uid + "/Calendar/acls";
 
   openAclWindow(url, uid);
 }