diff --git a/backend/getInfo.php b/backend/getInfo.php
index 24b11f7..4c22d6d 100644
--- a/backend/getInfo.php
+++ b/backend/getInfo.php
@@ -99,6 +99,9 @@ function getIPInfo($ip) {
             $info['detail'] = $info['as'] . ' ' . $info['isp'];
         }
     }
+    if (trim($info['detail']) == '') {
+        $info['detail'] = null;
+    }
     return $info;
 }