diff --git a/Stream_support/include/CGAL/IO/polygon_soup_io.h b/Stream_support/include/CGAL/IO/polygon_soup_io.h
index 74229da797e..c1239c9f3e1 100644
--- a/Stream_support/include/CGAL/IO/polygon_soup_io.h
+++ b/Stream_support/include/CGAL/IO/polygon_soup_io.h
@@ -23,10 +23,8 @@
 #include <CGAL/IO/VTK.h>
 #include <CGAL/IO/GOCAD.h>
 
-#include <algorithm>
 #include <iostream>
 #include <string>
-#include <vector>
 
 namespace CGAL {