diff --git a/sys/arch/hpcmips/conf/ioconf.incl.hpcmips b/sys/arch/hpcmips/conf/ioconf.incl.hpcmips
index 38c0e46b4188..30c32ae868a3 100644
--- a/sys/arch/hpcmips/conf/ioconf.incl.hpcmips
+++ b/sys/arch/hpcmips/conf/ioconf.incl.hpcmips
@@ -6,6 +6,7 @@
 #define PLATID_DEFINE_MASK_NICKNAME
 #include <machine/platid_mask.h>
 #undef PLATID_DEFINE_MASK_NICKNAME
+#undef SET /* XXX: nuke stupid SET macro defined in <sys/types.h> */
 #define CONFIG_HOOK_DEFINE_NICKNAME
 #include <machine/config_hook.h>
 #undef CONFIG_HOOK_DEFINE_NICKNAME