diff --git a/lib/descr/int b/lib/descr/int
index 32be1b44f..62b677c0c 100644
--- a/lib/descr/int
+++ b/lib/descr/int
@@ -10,8 +10,8 @@ var NAME=int22
 var LIB=lib/int22/tail_
 var RT=lib/int22/head_
 var SIZE_FLAG=-sm
-var CPP_F=-Dunix
-var INCLUDES=-I{EM}/include -I/usr/include
+var CPP_F=-Dunix=unix
+var INCLUDES=-I{EM}/include/_tail_cc -I{EM}/include/_tail_mon
 name asld
 	from .k.m.a.g
 	to .out