diff --git a/src/ox/mc/read.hpp b/src/ox/mc/read.hpp
index b2c01e7c5..a6107e1db 100644
--- a/src/ox/mc/read.hpp
+++ b/src/ox/mc/read.hpp
@@ -249,7 +249,7 @@ constexpr Error MetalClawReaderTemplate<Reader>::field(const char*, HashMap<Stri
 			auto &handler = *reader.interface();
 			oxReturnError(handler.setTypeInfo("List", 0, {}, static_cast<std::size_t>(len)));
 			// this loop body needs to be in a lambda because of the potential alloca call
-			constexpr auto loopBody = [](auto& handler, auto &val) {
+			constexpr auto loopBody = [](auto &handler, auto &val) {
 				oxRequire(keyLen, handler.stringLength(nullptr));
 				auto wkey = ox_malloca(keyLen + 1, char, 0);
 				auto wkeyPtr = wkey.get();