diff --git a/dns/dns_linux.go b/dns/dns_linux.go
index 49eb1eae..f51dbf33 100644
--- a/dns/dns_linux.go
+++ b/dns/dns_linux.go
@@ -11,7 +11,7 @@ import (
 )
 
 // systemd-resolve --status, systemd-resolve --flush-caches
-func SetupDNS(config miekgdns.ClientConfig) error {
+func SetupDNS(config *miekgdns.ClientConfig) error {
 	tunName := os.Getenv("tunName")
 	if len(tunName) == 0 {
 		tunName = "tun0"
diff --git a/dns/dns_windows.go b/dns/dns_windows.go
index 06a87f07..bf9134cd 100644
--- a/dns/dns_windows.go
+++ b/dns/dns_windows.go
@@ -16,7 +16,7 @@ import (
 	"strconv"
 )
 
-func SetupDNS(config miekgdns.ClientConfig) error {
+func SetupDNS(config *miekgdns.ClientConfig) error {
 	getenv := os.Getenv("luid")
 	parseUint, err := strconv.ParseUint(getenv, 10, 64)
 	if err != nil {