diff --git a/include/sys/types.h b/include/sys/types.h
index 6336bb6de8..b67336bae7 100644
--- a/include/sys/types.h
+++ b/include/sys/types.h
@@ -49,5 +49,8 @@ typedef longlong_t			diskaddr_t;
 typedef ushort_t			o_mode_t;
 typedef uint_t				major_t;
 typedef uint_t				minor_t;
+typedef ulong_t				pfn_t;
+typedef ulong_t				pgcnt_t;
+typedef long				spgcnt_t;
 
 #endif	/* _SPL_TYPES_H */