diff --git a/lib/Configuration.php b/lib/Configuration.php
index ddaaa051..b6b2e4d6 100644
--- a/lib/Configuration.php
+++ b/lib/Configuration.php
@@ -109,11 +109,11 @@ final class Configuration
         }
 
         if (file_exists(__DIR__ . '/../whitelist.txt')) {
-            $whitelist = trim(file_get_contents(__DIR__ . '/../whitelist.txt'));
-            if ($whitelist === '*') {
+            $enabledBridges = trim(file_get_contents(__DIR__ . '/../whitelist.txt'));
+            if ($enabledBridges === '*') {
                 self::setConfig('system', 'enabled_bridges', ['*']);
             } else {
-                self::setConfig('system', 'enabled_bridges', explode("\n", $whitelist));
+                self::setConfig('system', 'enabled_bridges', array_filter(explode("\n", $enabledBridges)));
             }
         }