diff --git a/src/ox/std/strconv.hpp b/src/ox/std/strconv.hpp
index 6bd27d69e..e160d9476 100644
--- a/src/ox/std/strconv.hpp
+++ b/src/ox/std/strconv.hpp
@@ -32,7 +32,7 @@ constexpr ox::Error writeItoa(Integer v, ox::Writer_c auto &writer) noexcept {
 			val %= mod;
 			mod /= base;
 			if (it || digit) {
-				ox::ResizedInt_t<Integer, 64> start = '0';
+				constexpr auto start = '0';
 				if (digit >= 10) [[unlikely]] {
 					digit -= 10;
 					OX_RETURN_ERROR(writer.put('1'));