diff --git a/endpoint.php b/endpoint.php
index da01ccd..5dfe5a9 100644
--- a/endpoint.php
+++ b/endpoint.php
@@ -28,6 +28,6 @@ if (isset($_GET["lat"]) && preg_match("/^-?\d+\.\d+$/", $_GET["lat"])
 } else {
 
     header('HTTP/1.0 400 Bad Request');
-    echo 'Please type this URL in the <a href="https://play.google.com/store/apps/details?id=fr.herverenault.selfhostedgpstracker">Self-Hosted GPS Tracker</a> Android app on your phone.';
+    echo 'This is an endpoint for compatible GPS trackers only.';
 
 }