diff --git a/Makefile b/Makefile
index c107955..1e15c72 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,7 @@ DATADIR=$(PREFIX)/share
 DOCDIR=$(DATADIR)/doc/iproute2
 MANDIR=$(DATADIR)/man
 ARPDDIR=/var/lib/arpd
+KERNEL_INCLUDE=/usr/include
 
 # Path to db_185.h include
 DBM_INCLUDE:=$(ROOTDIR)/usr/include