diff --git a/avatar.php b/avatar.php
new file mode 100644
index 0000000..aec678e
--- /dev/null
+++ b/avatar.php
@@ -0,0 +1,11 @@
+<?php
+require('config_avatars.php');
+
+$username = $_GET['username'] ?? null;
+
+if (!array_key_exists($username, $USERS)) {
+  http_response_code(404);
+  exit();
+}
+
+header('Location: '.$USERS[$username]);