diff --git a/src/UI/Dashboard/ParentDashboard.php b/src/UI/Dashboard/ParentDashboard.php
index 7897dde1ef..3f6e506cb4 100644
--- a/src/UI/Dashboard/ParentDashboard.php
+++ b/src/UI/Dashboard/ParentDashboard.php
@@ -823,7 +823,7 @@ protected function renderChildDashboard($gibbonPersonID, $dateStart)
 
         $defaultTab = preg_replace('/[^0-9]/', '', $_GET['tab'] ?? 0);
 
-        if (!isset($_GET['tab']) && !is_null($parentDashboardDefaultTabCount)) {
+        if (!isset($_GET['tab']) && !empty($parentDashboardDefaultTabCount)) {
             $defaultTab = $parentDashboardDefaultTabCount-1;
         }
         $return .= "<script type='text/javascript'>";