diff --git a/arc.mm b/arc.mm
index 8a504dc..d653e55 100644
--- a/arc.mm
+++ b/arc.mm
@@ -1,3 +1,4 @@
+#define _LIBCPP_NO_EXCEPTIONS 1
 #define TSL_NO_EXCEPTIONS 1
 #include <stdio.h>
 #include <stdlib.h>