diff --git a/ext/POSIX/typemap b/ext/POSIX/typemap
index 0497e1facf..11c3872401 100644
--- a/ext/POSIX/typemap
+++ b/ext/POSIX/typemap
@@ -1,8 +1,8 @@
-Mode_t			T_NV
-pid_t			T_NV
-Uid_t			T_NV
-Time_t			T_NV
-Gid_t			T_NV
+Mode_t			T_IV
+pid_t			T_IV
+Uid_t			T_UV
+Time_t			T_IV
+Gid_t			T_UV
 Off_t			T_NV
 speed_t			T_IV
 tcflag_t		T_IV