--- vv/vtkVOXImageWriter.cxx.orig	2026-03-02 00:15:44 UTC
+++ vv/vtkVOXImageWriter.cxx
@@ -17,6 +17,7 @@
 ===========================================================================**/
 #include <string>
 #include <fstream>
+#include <iostream>
 
 #include "vtkVOXImageWriter.h"