diff --git a/renderdoc/driver/metal/metal_device_bridge.mm b/renderdoc/driver/metal/metal_device_bridge.mm
index d4934be23..953a93dd3 100644
--- a/renderdoc/driver/metal/metal_device_bridge.mm
+++ b/renderdoc/driver/metal/metal_device_bridge.mm
@@ -28,11 +28,6 @@
 #include "metal_library.h"
 #include "metal_types_bridge.h"
 
-// Define Mac SDK versions when compiling with earlier SDKs
-#ifndef __MAC_12_0
-#define __MAC_12_0 120000
-#endif
-
 // Bridge for MTLDevice
 @implementation ObjCBridgeMTLDevice
 
diff --git a/renderdoc/driver/metal/metal_types_bridge.h b/renderdoc/driver/metal/metal_types_bridge.h
index 1963298e1..31c6afa5c 100644
--- a/renderdoc/driver/metal/metal_types_bridge.h
+++ b/renderdoc/driver/metal/metal_types_bridge.h
@@ -38,3 +38,8 @@
 
 METALCPP_WRAPPED_PROTOCOLS(DECLARE_OBJC_WRAPPED_INTERFACES)
 #undef DECLARE_OBJC_WRAPPED_INTERFACES
+
+// Define Mac SDK versions when compiling with earlier SDKs
+#ifndef __MAC_12_0
+#define __MAC_12_0 120000
+#endif