diff --git /usr/include/mach/arm/_structs.h /usr/include/mach/arm/_structs.h
index e130afa..1f98c98 100644
--- /usr/include/mach/arm/_structs.h
+++ /usr/include/mach/arm/_structs.h
@@ -25,7 +25,7 @@ _STRUCT_ARM_EXCEPTION_STATE
 };
 #endif /* __DARWIN_UNIX03 */

-#if __DARWIN_UNIX03
+#if __DARWIN_UNIX03 || 1
 #define _STRUCT_ARM_THREAD_STATE	struct __darwin_arm_thread_state
 _STRUCT_ARM_THREAD_STATE
 {