diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index e46dab1..e3fbecb 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -200,6 +200,7 @@
 header-y += inotify.h
 header-y += input.h
 header-y += ioctl.h
+header-y += ion.h
 header-y += ip.h
 header-y += ip6_tunnel.h
 header-y += ip_vs.h