diff --git a/modules/monitoring/application/views/helpers/Customvar.php b/modules/monitoring/application/views/helpers/Customvar.php
index 168c18b38..8bfdc3a52 100644
--- a/modules/monitoring/application/views/helpers/Customvar.php
+++ b/modules/monitoring/application/views/helpers/Customvar.php
@@ -34,9 +34,11 @@ class Zend_View_Helper_Customvar extends Zend_View_Helper_Abstract
             return '[]';
         }
         $out = "<ul>\n";
+
         foreach ($array as $val) {
             $out .= '<li>' . $this->customvar($val) . "</li>\n";
         }
+
         return $out . "</ul>\n";
     }
 
@@ -46,6 +48,7 @@ class Zend_View_Helper_Customvar extends Zend_View_Helper_Abstract
             return '{}';
         }
         $out = "{<ul>\n";
+
         foreach ($object as $key => $val) {
             $out .= '<li>'
                   . $this->view->escape($key)
@@ -53,6 +56,7 @@ class Zend_View_Helper_Customvar extends Zend_View_Helper_Abstract
                   . $this->customvar($val)
                   . "</li>\n";
         }
+
         return $out . "</ul>}";
     }
 }
diff --git a/modules/monitoring/application/views/scripts/partials/object/detail-content.phtml b/modules/monitoring/application/views/scripts/partials/object/detail-content.phtml
index dbd8abc21..3ab6dab17 100644
--- a/modules/monitoring/application/views/scripts/partials/object/detail-content.phtml
+++ b/modules/monitoring/application/views/scripts/partials/object/detail-content.phtml
@@ -43,7 +43,7 @@
 
     <?php if (! empty($object->customvars)): ?>
     <h2><?= $this->translate('Custom Variables') ?></h2>
-    <table class="name-value-table">
+    <table id="<?= $object->type ?>-customvars" class="name-value-table collapsible" data-visible-height="200">
     <tbody>
         <?= $this->render('show/components/customvars.phtml') ?>
     </tbody>