diff --git a/webapp/src/Config/OptionalFileResource.php b/webapp/src/Config/OptionalFileResource.php
index aa0a82b656..50da3fc739 100644
--- a/webapp/src/Config/OptionalFileResource.php
+++ b/webapp/src/Config/OptionalFileResource.php
@@ -14,7 +14,7 @@
  * @see FileResource
  * @see FileExistenceResource
  */
-class OptionalFileResource implements SelfCheckingResourceInterface, Stringable
+class OptionalFileResource implements SelfCheckingResourceInterface
 {
     private readonly bool $exists;