diff --git a/tcp_tests/templates/underlay/mk22-lab-advanced--user-data1604.yaml b/tcp_tests/templates/underlay/mk22-lab-advanced--user-data1604.yaml
index 4951802..bf1ea31 100644
--- a/tcp_tests/templates/underlay/mk22-lab-advanced--user-data1604.yaml
+++ b/tcp_tests/templates/underlay/mk22-lab-advanced--user-data1604.yaml
@@ -83,7 +83,7 @@
    ########################################################
 
   write_files:
-   - path: /etc/network/interfaces.d/99-tcp-tests.cfg
+   - path: /etc/network/interfaces
      content: |
           auto ens3
           iface ens3 inet dhcp