diff --git a/frontend/views/layouts/main.php b/frontend/views/layouts/main.php
index 973526d..95df41e 100755
--- a/frontend/views/layouts/main.php
+++ b/frontend/views/layouts/main.php
@@ -302,7 +302,7 @@ $commentUrl = Alias::find()->where(['route' => '{"0":"site/comments","service_id
                         <a href="<?= (isset($aliases['{"0":"site/questions"}'])) ? Url::to(['alias' => $aliases['{"0":"site/questions"}']]) :
 			                Url::to(['site/questions']) ?>"><?= \Yii::t('app', 'Quest/Answer') ?></a></li>
                     <li>
-                        <a href="<?= (isset($commentUrl)) ? Url::to(['/' . $commentUrl['{"0":"site/comments","service_id":0}']['value']]) :
+                        <a href="<?= (isset($commentUrl['{"0":"site/comments","service_id":0}'])) ? Url::to(['/' . $commentUrl['{"0":"site/comments","service_id":0}']['value']]) :
 			                Url::to(['site/comments']) ?>"><?= \Yii::t('app', 'Callbacks') ?></a></li>
                 </ul>
 <!--                -->
--
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