diff --git a/setup.php b/setup.php
index 2358d11..12d20df 100644
--- a/setup.php
+++ b/setup.php
@@ -14,6 +14,11 @@ if (file_exists($config_path)) {
         unset($existing['epg_url'], $existing['m3u_url']);
         file_put_contents($config_path, json_encode($existing, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
     }
+    // Bootstrap : config existante sans cle admin -> on en genere une maintenant
+    if (empty($existing['admin_key'])) {
+        $existing['admin_key'] = bin2hex(random_bytes(16));
+        file_put_contents($config_path, json_encode($existing, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+    }
 }
 
 $is_first_setup = !file_exists($config_path);