diff --git a/module/VuFind/src/VuFind/Controller/AjaxController.php b/module/VuFind/src/VuFind/Controller/AjaxController.php
index 1b44d47b1a0cb314e85b45ea85465fffa3ec373e..e7ef3cb711ba5f30a480fef4e1a7a0e03cc9ad71 100644
--- a/module/VuFind/src/VuFind/Controller/AjaxController.php
+++ b/module/VuFind/src/VuFind/Controller/AjaxController.php
@@ -751,7 +751,7 @@ class AjaxController extends AbstractBase
             $tagList[] = [
                 'tag'   => $tag->tag,
                 'cnt'   => $tag->cnt,
-                'is_me' => $tag->is_me == 1 ? true : false
+                'is_me' => !empty($tag->is_me)
             ];
         }