diff --git a/module/custom/ui/required.html.php b/module/custom/ui/required.html.php
index 5331ebd410..10aabb2d33 100644
--- a/module/custom/ui/required.html.php
+++ b/module/custom/ui/required.html.php
@@ -53,7 +53,6 @@ if(common::hasPriv('custom', 'resetRequired'))
 if(!in_array($module, array('productplan', 'release', 'testsuite', 'testreport', 'caselib', 'doc')) && (!in_array($module, array('project', 'execution')) || (in_array($module, array('project', 'execution')) && $config->vision == 'rnd'))) include 'sidebar.html.php';
 div
 (
-    setID('mainContent'),
     setClass('row has-sidebar-left'),
     isset($sidebarMenu) ? $sidebarMenu : null,
     formPanel
diff --git a/module/custom/ui/set.html.php b/module/custom/ui/set.html.php
index 38b47d7e43..34c74d407a 100644
--- a/module/custom/ui/set.html.php
+++ b/module/custom/ui/set.html.php
@@ -589,7 +589,6 @@ if(in_array($module, array('story', 'requirement', 'epic')) && $field == 'grade'
 
     div
     (
-        setID('mainContent'),
         setClass('row has-sidebar-left'),
         $sidebarMenu,
         formPanel(
@@ -627,7 +626,6 @@ else
 {
     div
     (
-        setID('mainContent'),
         setClass('row has-sidebar-left'),
         isset($sidebarMenu) ? $sidebarMenu : null,
         formPanel