diff --git a/app/controllers/api/avatars.php b/app/controllers/api/avatars.php
index 61f45ba3d4..2b6951295e 100644
--- a/app/controllers/api/avatars.php
+++ b/app/controllers/api/avatars.php
@@ -38,7 +38,7 @@ $avatarCallback = function ($type, $code, $width, $height, $quality, $response)
 
     $output = 'png';
     $date = \date('D, d M Y H:i:s', \time() + (60 * 60 * 24 * 45)) . ' GMT'; // 45 days cache
-    $key = \md5('/v1/avatars/:type/:code-' . $code . $width . $height . $quality . $output);
+    $key = \md5('/v1/avatars/'.$type.'/:code-' . $code . $width . $height . $quality . $output);
     $path = $set[$code];
     $type = 'png';