diff --git a/nall/arithmetic.hpp b/nall/arithmetic.hpp
index baf00a9fb..4d0ebbf38 100644
--- a/nall/arithmetic.hpp
+++ b/nall/arithmetic.hpp
@@ -3,6 +3,8 @@
 //multi-precision arithmetic
 //warning: each size is quadratically more expensive than the size before it!
 
+#include <stdexcept>
+
 #include <nall/stdint.hpp>
 #include <nall/string.hpp>
 #include <nall/range.hpp>