diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 106c3ba..e9581fd 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -115,6 +115,7 @@
 header-y += mtio.h
 header-y += ncp_no.h
 header-y += neighbour.h
+header-y += net_dropmon.h
 header-y += netfilter_arp.h
 header-y += netrom.h
 header-y += nfs2.h