diff --git a/config.inc.php b/config.inc.php
index 15e5a5d..145f8c3 100644
--- a/config.inc.php
+++ b/config.inc.php
@@ -677,7 +677,7 @@ function config_fetch_all(bool $force_stale = false) : ConfigFetchResult
   return config_fetch_ex(config_scan_files(), $force_stale);
 }
 
-class ConfigCacheEntryExtras
+class ConfigCacheEntryExtras extends \stdClass
 {
   private static string $klass = ConfigCacheEntryExtras::class;