diff --git a/classes/template/PKPTemplateManager.php b/classes/template/PKPTemplateManager.php
index 417b10bde51..f56b93cff8f 100644
--- a/classes/template/PKPTemplateManager.php
+++ b/classes/template/PKPTemplateManager.php
@@ -303,6 +303,7 @@ public function initialize($request)
         $this->registerPlugin('modifier', 'substr', 'substr');
         $this->registerPlugin('modifier', 'strstr', 'strstr');
         $this->registerPlugin('modifier', 'array_key_first', 'array_key_first');
+        $this->registerPlugin('modifier', 'fatalError', 'fatalError');
         $this->registerPlugin('modifier', 'translate', [$this, 'smartyTranslateModifier']);
         $this->registerPlugin('modifier', 'strip_unsafe_html', '\PKP\core\PKPString::stripUnsafeHtml');
         $this->registerPlugin('modifier', 'String_substr', '\PKP\core\PKPString::substr');