1 files changed, 1 insertions, 1 deletions
diff --git a/arith.h b/arith.h
index 2ae2bcf2..55d14333 100644
--- a/arith.h
+++ b/arith.h
@@ -60,6 +60,6 @@ val digits(val n, val base);
 val poly(val x, val seq);
 val rpoly(val x, val seq);
 
-noreturn void do_mp_error(val self, mp_err code);
+NORETURN void do_mp_error(val self, mp_err code);
 void arith_init(void);
 void arith_free_all(void);