diff --git a/src/exception/OrderFileNotFoundException.php b/src/exception/OrderFileNotFoundException.php
index 4f3041a..30bc4e4 100644
--- a/src/exception/OrderFileNotFoundException.php
+++ b/src/exception/OrderFileNotFoundException.php
@@ -9,6 +9,10 @@
 
 namespace horstoeko\zugferd\exception;
 
+use Throwable;
+use horstoeko\orderx\exception\OrderBaseException;
+use horstoeko\orderx\exception\OrderExceptionCodes;
+
 /**
  * Class representing an exception for missing a file
  *