diff --git a/dhcpd/files/service_config.Debian b/dhcpd/files/service_config.Debian
index 6419d9a..7dba9a4 100644
--- a/dhcpd/files/service_config.Debian
+++ b/dhcpd/files/service_config.Debian
@@ -12,4 +12,8 @@
 
 # On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
 #       Separate multiple interfaces with spaces, e.g. "eth0 eth1".
+{% if grains.osmajorrelease >= 9 %}
+INTERFACESv4="{{ ' '.join(salt['pillar.get']('dhcpd:listen_interfaces', [])) }}"
+{% else %}
 INTERFACES="{{ ' '.join(salt['pillar.get']('dhcpd:listen_interfaces', [])) }}"
+{% endif %}