diff --git a/deps/ox/src/ox/model/def.hpp b/deps/ox/src/ox/model/def.hpp
index 016f7be9..7fe95c64 100644
--- a/deps/ox/src/ox/model/def.hpp
+++ b/deps/ox/src/ox/model/def.hpp
@@ -11,4 +11,4 @@
 #define oxModelBegin(modelName) template<typename T> constexpr ox::Error model(T *io, modelName *o) noexcept { io->template setTypeInfo<modelName>();
 #define oxModelEnd() return OxError(0); }
 #define oxModelField(fieldName) oxReturnError(io->field(#fieldName, &o->fieldName));
-#define oxModelFriend(modelName) template<typename T> friend ox::Error model(T*, modelName*)
+#define oxModelFriend(modelName) template<typename T> friend constexpr ox::Error model(T*, modelName*) noexcept