diff --git a/riscos/print.c b/riscos/print.c
index 0fb9a9a44..0ec541a2d 100644
--- a/riscos/print.c
+++ b/riscos/print.c
@@ -29,6 +29,7 @@
 #include <oslib/pdriver.h>
 #include <oslib/wimp.h>
 #include <rufl.h>
+#include <limits.h>
 
 #include "utils/config.h"
 #include "utils/log.h"