diff --git a/src/vnet/CMakeLists.txt b/src/vnet/CMakeLists.txt
index bf1dba7..39774ba 100644
--- a/src/vnet/CMakeLists.txt
+++ b/src/vnet/CMakeLists.txt
@@ -458,6 +458,7 @@
   ip/ip_checksum.c
   ip/ip_frag.c
   ip/ip.c
+  ip/ip_interface.c
   ip/ip_init.c
   ip/ip_in_out_acl.c
   ip/ip_punt_drop.c
@@ -501,6 +502,7 @@
   ip/ip6_hop_by_hop_packet.h
   ip/ip6_packet.h
   ip/ip.h
+  ip/ip_interface.h
   ip/ip_packet.h
   ip/ip_source_and_port_range_check.h
   ip/ip_types.h