diff --git a/themes/bootstrap3/templates/collection/view.phtml b/themes/bootstrap3/templates/collection/view.phtml
index 5b7603f5331a90b65969da798ef8218881518456..54f5b7bffca04a0e18dbf6b9e61679ed55501a5f 100644
--- a/themes/bootstrap3/templates/collection/view.phtml
+++ b/themes/bootstrap3/templates/collection/view.phtml
@@ -68,7 +68,7 @@
           }
         ?>
         <li<?=$isCurrent ? ' class="active"' : ''?>>
-          <a id="<?=$tab ?>" href="<?=$this->recordLink()->getTabUrl($this->driver, $tab)?>#tabnav"><?=$this->transEsc($desc)?></a>
+          <a id="<?=strtolower($tab) ?>" href="<?=$this->recordLink()->getTabUrl($this->driver, $tab)?>#tabnav"><?=$this->transEsc($desc)?></a>
         </li>
         <? endforeach; ?>
       </ul>