diff --git a/basis/unix/types/macosx/macosx.factor b/basis/unix/types/macosx/macosx.factor
index 156e756641..ac62776ed7 100644
--- a/basis/unix/types/macosx/macosx.factor
+++ b/basis/unix/types/macosx/macosx.factor
@@ -1,19 +1,13 @@
-
 USING: alien.syntax ;
-
 IN: unix.types
 
-! Darwin 9.1.0 ppc
-
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+! Darwin 9.1.0
 
 TYPEDEF: ushort   __uint16_t
 TYPEDEF: uint     __uint32_t
 TYPEDEF: int      __int32_t
 TYPEDEF: longlong __int64_t
 
-! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
 TYPEDEF: __int32_t  dev_t
 TYPEDEF: __uint32_t ino_t
 TYPEDEF: __uint16_t mode_t
diff --git a/basis/unix/types/types.factor b/basis/unix/types/types.factor
index 65845874b1..f7ce6406fe 100644
--- a/basis/unix/types/types.factor
+++ b/basis/unix/types/types.factor
@@ -36,6 +36,7 @@ TYPEDEF: fsblkcnt_t __fsblkcnt_t
 TYPEDEF: __uint64_t fsfilcnt_t
 TYPEDEF: fsfilcnt_t __fsfilcnt_t
 TYPEDEF: __uint64_t rlim_t
+TYPEDEF: uint32_t id_t
 
 os {
     { linux   [ "unix.types.linux"   require ] }