diff --git a/src/ox/std/hardware.hpp b/src/ox/std/hardware.hpp
index 47e266540..ef267fb47 100644
--- a/src/ox/std/hardware.hpp
+++ b/src/ox/std/hardware.hpp
@@ -12,7 +12,7 @@
 #define OX_ARCH_x86_64
 #elif defined(__i386__) || defined(_M_IX86)
 #define OX_ARCH_x86_32
-#elif defined(_M_AMD64)
+#elif defined(__arm64__)
 #define OX_ARCH_ARM64
 #elif defined(__arm__)
 #define OX_ARCH_ARM