diff --git a/deps/ox/src/ox/mc/test/tests.cpp b/deps/ox/src/ox/mc/test/tests.cpp
index a3dafabf..1bea80fa 100644
--- a/deps/ox/src/ox/mc/test/tests.cpp
+++ b/deps/ox/src/ox/mc/test/tests.cpp
@@ -6,6 +6,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
+#undef NDEBUG
+
 #include <assert.h>
 #include <iostream>
 #include <map>
diff --git a/deps/ox/src/ox/std/error.hpp b/deps/ox/src/ox/std/error.hpp
index ee219900..2380c6e7 100644
--- a/deps/ox/src/ox/std/error.hpp
+++ b/deps/ox/src/ox/std/error.hpp
@@ -12,9 +12,9 @@
 #include "utility.hpp"
 
 #ifdef DEBUG
-#define OxError(x) ox::_error(__FILE__, __LINE__, x)
+#define OxError(x) ox::_error(__FILE__, __LINE__, static_cast<ox::Error>(x))
 #else
-#define OxError(x) x
+#define OxError(x) static_cast<ox::Error>(x)
 #endif
 
 #define oxReturnError(x) if (const auto _err = x) return _err