diff --git a/themes/bootstrap3/theme.config.php b/themes/bootstrap3/theme.config.php
index 9abcde9b89d9a3bfd32e6a314c3d1df5ca3fdf87..c2a266cbba523d97ac71743968d92d5fbb09feb3 100644
--- a/themes/bootstrap3/theme.config.php
+++ b/themes/bootstrap3/theme.config.php
@@ -31,7 +31,6 @@ return [
             'flashmessages' => 'VuFind\View\Helper\Bootstrap3\Factory::getFlashmessages',
             'layoutclass' => 'VuFind\View\Helper\Bootstrap3\Factory::getLayoutClass',
             'recaptcha' => 'VuFind\View\Helper\Bootstrap3\Factory::getRecaptcha',
-            'summaries' => 'VuFind\View\Helper\Root\Factory::getSummaries',
         ],
         'invokables' => [
             'highlight' => 'VuFind\View\Helper\Bootstrap3\Highlight',
diff --git a/themes/root/theme.config.php b/themes/root/theme.config.php
index 485cfadda9c7a62653648a65bea07ac86e3dc79f..b8915372f4317c27feb8b3058fa9da052fc7494c 100644
--- a/themes/root/theme.config.php
+++ b/themes/root/theme.config.php
@@ -37,6 +37,7 @@ return [
             'searchoptions' => 'VuFind\View\Helper\Root\Factory::getSearchOptions',
             'searchparams' => 'VuFind\View\Helper\Root\Factory::getSearchParams',
             'searchtabs' => 'VuFind\View\Helper\Root\Factory::getSearchTabs',
+            'summaries' => 'VuFind\View\Helper\Root\Factory::getSummaries',
             'syndeticsplus' => 'VuFind\View\Helper\Root\Factory::getSyndeticsPlus',
             'systememail' => 'VuFind\View\Helper\Root\Factory::getSystemEmail',
             'userlist' => 'VuFind\View\Helper\Root\Factory::getUserList',