diff --git a/include/fmt/format.h b/include/fmt/format.h
index 34c9dc75..87a34b97 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -1486,7 +1486,7 @@ inline uint128_fallback umul128(uint64_t x, uint64_t y) noexcept {
   auto p = static_cast<uint128_opt>(x) * static_cast<uint128_opt>(y);
   return {static_cast<uint64_t>(p >> 64), static_cast<uint64_t>(p)};
 #elif defined(_MSC_VER) && defined(_M_X64)
-  auto hi = uint64_t{};
+  auto hi = uint64_t();
   auto lo = _umul128(x, y, &hi);
   return {hi, lo};
 #else