diff --git a/shortener/README.md b/shortener/README.md
index 155d5f2..dcd0469 100644
--- a/shortener/README.md
+++ b/shortener/README.md
@@ -14,11 +14,7 @@ server {
     }
     
     location / {
-        try_files @ashdotley;
-    }
-    
-    location @ashdotley {
-        rewrite ^/(.*) /index.php?id=$1&$args last;
+        rewrite ^/(.*) /index.php?l=$1&$args;
     }
     
     location ~ ^/index.php$ {
diff --git a/shortener/index.php b/shortener/index.php
index 415fa57..be7cca2 100644
--- a/shortener/index.php
+++ b/shortener/index.php
@@ -1,7 +1,7 @@
 <?php
 if (isset($_GET['l'])) {
     $l = $_GET['l'];
-    if (str_contains($l, '/') || str_contains($l, '~') || str_contains($l, '.')) {
+    if (strpos($l, '/') !== false || strpos($l, '~') !== false || strpos($l, '.') !== false) {
         http_response_code(400);
         echo "hehe no you don't";
         die;