diff --git a/cmd/ctrld/cli.go b/cmd/ctrld/cli.go
index 6ef1c0f..c895f11 100644
--- a/cmd/ctrld/cli.go
+++ b/cmd/ctrld/cli.go
@@ -724,9 +724,6 @@ func processCDFlags() {
 	if cdUID == "" {
 		return
 	}
-	if iface == "" {
-		iface = "auto"
-	}
 	logger := mainLog.With().Str("mode", "cd").Logger()
 	logger.Info().Msgf("fetching Controld D configuration from API: %s", cdUID)
 	resolverConfig, err := controld.FetchResolverConfig(cdUID, rootCmd.Version, cdDev)