diff --git a/ground/controllers/GoController.php b/ground/controllers/GoController.php
index a280674..8124d24 100644
--- a/ground/controllers/GoController.php
+++ b/ground/controllers/GoController.php
@@ -12,11 +12,11 @@ class GoController extends Controller
 		$url = $_GET['url'];
 		$url = filter_var($url, FILTER_VALIDATE_URL);
 
-		if($url) {
+		if($url && isset($_SERVER['HTTP_REFERER'])) {
 			$go = new GoAway(array(
 				'date' => date('c'),
 				'url' => $url,
-				'ref' => isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '',
+				'ref' => $_SERVER['HTTP_REFERER'],
 			));
 			$go->save();
 			App::redirect($url, 302);