diff --git a/library/Director/ProvidedHook/Icingadb/CustomVarRenderer.php b/library/Director/ProvidedHook/Icingadb/CustomVarRenderer.php
index ca86e5836..39b39636a 100644
--- a/library/Director/ProvidedHook/Icingadb/CustomVarRenderer.php
+++ b/library/Director/ProvidedHook/Icingadb/CustomVarRenderer.php
@@ -12,6 +12,11 @@
 use Icinga\Module\Icingadb\Hook\CustomVarRendererHook;
 use Icinga\Module\Icingadb\Model\Host;
 use Icinga\Module\Icingadb\Model\Service;
+use ipl\Html\Attributes;
+use ipl\Html\Html;
+use ipl\Html\HtmlElement;
+use ipl\Html\Text;
+use ipl\Html\ValidHtml;
 use ipl\Orm\Model;
 
 class CustomVarRenderer extends CustomVarRendererHook
@@ -25,6 +30,8 @@ class CustomVarRenderer extends CustomVarRendererHook
     /** @var array Related dictionary field names */
     protected $dictionaryNames = [];
 
+    protected $dictionaryLevel = 0;
+
     /**
      * Get a database connection to the director database
      *
@@ -120,7 +127,11 @@ public function prefetchForObject(Model $object): bool
     public function renderCustomVarKey(string $key)
     {
         if (isset($this->fieldConfig[$key]['label'])) {
-            return $this->fieldConfig[$key]['label'];
+            return new HtmlElement(
+                'span',
+                Attributes::create(['title' => $this->fieldConfig[$key]['label'] . " [$key]"]),
+                Text::create($this->fieldConfig[$key]['label'])
+            );
         }
 
         return null;
@@ -157,21 +168,82 @@ public function identifyCustomVarGroup(string $key): ?string
      *
      * @param array $value
      *
-     * @return array
+     * @return ValidHtml
      */
-    protected function renderDictionaryVal(array $value): array
+    protected function renderDictionaryVal(array $value): ValidHtml
     {
-        $newValue = [];
+        $value = (array) $value;
+        $numItems = count($value);
+
+        $valueTable = new HtmlElement(
+            'table',
+            Attributes::create(['class' => ['custom-var-table', 'name-value-table']])
+        );
+
+        $valueBody = new HtmlElement('tbody');
+
+        $valueBody->addHtml(
+            new HtmlElement(
+                'tr',
+                Attributes::create(['class' => "level-{$this->dictionaryLevel}"]),
+                new HtmlElement(
+                    'td',
+                    null,
+                    Text::create(sprintf(tp('%d item', '%d items', $numItems), $numItems))
+                )
+            )
+        );
+
+        $this->dictionaryLevel++;
         foreach ($value as $key => $val) {
-            if (is_array($val)) {
+            if (is_array($val) || is_object($val)) {
+                $numItems = count((array) $val);
+
+                $valueBody->addHtml(
+                    new HtmlElement(
+                        'tr',
+                        Attributes::create(['class' => "level-{$this->dictionaryLevel}"]),
+                        new HtmlElement('th', null, Html::wantHtml($key)),
+                        new HtmlElement(
+                            'td',
+                            null,
+                            Text::create(sprintf(tp('%d item', '%d items', $numItems), $numItems))
+                        )
+                    )
+                );
+
+                $this->dictionaryLevel++;
                 foreach ($val as $subKey => $subVal) {
                     $label = $this->renderCustomVarKey($subKey) ?? $subKey;
                     $subVal = $this->renderCustomVarValue($subKey, $subVal) ?? $subVal;
-                    $newValue[$key][$label] = $subVal;
+
+                    if ($label !== null && $subVal !== null) {
+                        $valueBody->addHtml(
+                            new HtmlElement(
+                                'tr',
+                                Attributes::create(['class' => "level-{$this->dictionaryLevel}"]),
+                                new HtmlElement('th', null, Html::wantHtml($label)),
+                                new HtmlElement('td', null, Html::wantHtml($subVal))
+                            )
+                        );
+                    }
                 }
+
+                $this->dictionaryLevel--;
+            } else {
+                $valueBody->addHtml(
+                    new HtmlElement(
+                        'tr',
+                        Attributes::create(['class' => "level-{$this->dictionaryLevel}"]),
+                        new HtmlElement('th', null, Html::wantHtml($key)),
+                        new HtmlElement('td', null, Html::wantHtml($val))
+                    )
+                );
             }
         }
 
-        return $newValue;
+        $this->dictionaryLevel--;
+
+        return $valueTable->addHtml($valueBody);
     }
 }