diff --git a/xmo-cli.py b/xmo-cli.py
index 7fc2f19..fbb17a6 100755
--- a/xmo-cli.py
+++ b/xmo-cli.py
@@ -95,12 +95,9 @@ async def set_dns_servers(client: SagemcomClient, dns_servers: tuple[IPv4Address
     for i, dns_server in enumerate(dns_servers, start=1):
         try:
             await client.set_value_by_xpath(f"Device/DNS/Relay/Forwardings/Forwarding[@uid={i}]/DNSServer", dns_server)
-            iface = 'Device/IP/Interfaces/Interface[IP_DATA]'
-            if dns_server.is_private:
-                iface = 'Device/IP/Interfaces/Interface[IP_BR_LAN]'
             await client.set_value_by_xpath(
                 f"Device/DNS/Relay/Forwardings/Forwarding[@uid={i}]/Interface",
-                iface
+                'Device/IP/Interfaces/Interface[IP_BR_LAN]' if dns_server.is_private else 'Device/IP/Interfaces/Interface[IP_DATA]'
             )
         except Exception as e:
             click.echo(e, err=True)