diff --git a/app/Template/comments/show.php b/app/Template/comments/show.php
index ccc1d9cc8..76af55936 100644
--- a/app/Template/comments/show.php
+++ b/app/Template/comments/show.php
@@ -3,10 +3,12 @@
         <h3><a href="#" class="fa accordion-toggle"></a> <?= t('Comments') ?></h3>
     </div>
     <div class="accordion-content" id="comments">
-        <div class="comment-sorting">
-            <i class="fa fa-sort"></i>
-            <?= $this->url->link(t('change sorting'), 'comment', 'toggleSorting', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
-        </div>
+        <?php if (!isset($is_public) || !$is_public): ?>
+            <div class="comment-sorting">
+                <i class="fa fa-sort"></i>
+                <?= $this->url->link(t('change sorting'), 'comment', 'toggleSorting', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
+            </div>
+        <?php endif ?>
         <?php foreach ($comments as $comment): ?>
             <?= $this->render('comment/show', array(
                 'comment' => $comment,