diff --git a/scripts/pi-hole/js/groups-adlists.js b/scripts/pi-hole/js/groups-adlists.js
index 4b298167..6a5baf8a 100644
--- a/scripts/pi-hole/js/groups-adlists.js
+++ b/scripts/pi-hole/js/groups-adlists.js
@@ -86,7 +86,7 @@ function format(data) {
     " (" +
     utils.datetime(data.date_modified, false) +
     ')</td></tr><tr class="dataTables-child"><td>The list contents were last updated&nbsp;&nbsp;</td><td>' +
-    (data.date_updated !== null
+    (data.date_updated > 0
       ? utils.datetimeRelative(data.date_updated) +
         "&nbsp;(" +
         utils.datetime(data.date_updated) +