diff --git a/tcp_tests/templates/underlay/mk22-lab-basic--user-data1404.yaml b/tcp_tests/templates/underlay/mk22-lab-basic--user-data1404.yaml
index 8df02af..faadbb5 100644
--- a/tcp_tests/templates/underlay/mk22-lab-basic--user-data1404.yaml
+++ b/tcp_tests/templates/underlay/mk22-lab-basic--user-data1404.yaml
@@ -90,7 +90,7 @@
    ########################################################
 
   write_files:
-   - path: /etc/network/interfaces.d/99-tcp-tests.cfg
+   - path: /etc/network/interfaces
      content: |
           auto eth0
           iface eth0 inet dhcp