diff --git a/views/templates/mapguesser.php b/views/templates/mapguesser.php
index 13276f7..4fe5997 100644
--- a/views/templates/mapguesser.php
+++ b/views/templates/mapguesser.php
@@ -6,7 +6,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <meta name="theme-color" content="#198231">
     <title><?= $_ENV['APP_NAME'] ?></title>
-    <?php if (preg_match('/^http(s)?/', $_ENV['STATIC_ROOT']) === 1): ?>
+    <?php if (preg_match('/^(http(s)?:)?\/\//', $_ENV['STATIC_ROOT']) === 1): ?>
         <link href="<?= $_ENV['STATIC_ROOT'] ?>" rel="preconnect">
     <?php endif; ?>
     <link href="https://fonts.gstatic.com" rel="preconnect">