diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index ccc6fc1..94cc04a 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -92,7 +92,6 @@
 header-y += ipsec.h
 header-y += ipx.h
 header-y += irda.h
-header-y += isdn_divertif.h
 header-y += iso_fs.h
 header-y += ixjuser.h
 header-y += jffs2.h
@@ -242,6 +241,7 @@
 unifdef-y += ipv6_route.h
 unifdef-y += isdn.h
 unifdef-y += isdnif.h
+unifdef-y += isdn_divertif.h
 unifdef-y += isdn_ppp.h
 unifdef-y += isicom.h
 unifdef-y += jbd.h