diff --git a/includes/html/common/alert-log.inc.php b/includes/html/common/alert-log.inc.php
index 313c3a87fa42..5ab9e26de592 100644
--- a/includes/html/common/alert-log.inc.php
+++ b/includes/html/common/alert-log.inc.php
@@ -147,7 +147,7 @@
         post: function () {
             return {
                 id: "alertlog",
-                device_id: \'' . htmlspecialchars($_POST['device_id']) . '\',
+                device_id: \'' . htmlspecialchars($_POST['device_id'] ?? $device_id) . '\',
                 state: \'' . htmlspecialchars($_POST['state']) . '\',
                 min_severity: \'' . htmlspecialchars($_POST['min_severity']) . '\'
             };