--- a/source/NHUGens/NHHall.cpp	2018-11-18 23:18:46.000000000 +0100
+++ b/source/NHUGens/NHHall.cpp	2020-09-13 07:57:48.084435095 +0200
@@ -25,6 +25,7 @@
 For more information, please refer to <http://unlicense.org>
 */
 
+#include <cstdio>
 #include "nh_hall.hpp"
 #include "SC_PlugIn.hpp"