diff --git a/go.mod b/go.mod
index 4290d3b..0a7b242 100644
--- a/go.mod
+++ b/go.mod
@@ -8,10 +8,10 @@ require (
 	github.com/miekg/unbound v0.0.0-20180419064740-e2b53b2dbcba
 	github.com/nodech/go-hsd-utils v0.0.1
 	golang.org/x/crypto v0.16.0
+	golang.org/x/sys v0.22.0
 )
 
 require (
 	github.com/decred/dcrd/dcrec/secp256k1/v3 v3.0.0 // indirect
 	golang.org/x/net v0.10.0 // indirect
-	golang.org/x/sys v0.15.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 869bc8d..4ad7cfd 100644
--- a/go.sum
+++ b/go.sum
@@ -35,6 +35,8 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
 golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
+golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
diff --git a/prove/getdns.go b/prove/getdns.go
index d48ab4e..1ba64e9 100644
--- a/prove/getdns.go
+++ b/prove/getdns.go
@@ -3,6 +3,9 @@ package prove
 /*
 #include <getdns/getdns.h>
 #include "getdns_dnssec.h"
+#cgo LDFLAGS: -lgetdns
+#cgo LDFLAGS: "-L/usr/local/lib"
+#cgo CFLAGS: "-I/usr/local/include/getdns"
 */
 import "C"
 import (
diff --git a/sync/hnsd.go b/sync/hnsd.go
index be6a6aa..27f7c85 100644
--- a/sync/hnsd.go
+++ b/sync/hnsd.go
@@ -70,24 +70,20 @@ func CheckHNSDVersion() error {
 }
 
 // checks if hnsd has synced all blocks in order to kill the subprocess
-// does it by invoking hesoid DNS request which
+// does it by invoking hesiod DNS request which
 // TODO export params
 func checkIfSynced() (bool, error) {
 	msg := new(dns.Msg)
 	msg.SetQuestion(dns.Fqdn(qname), dns.StringToType[qtype])
 	msg.SetEdns0(4096, true)
-
 	msg.Question[0].Qclass = dns.StringToClass[qclass]
 
-	// Use the net package to send the DNS query with a timeout
 	client := new(dns.Client)
-	// client.Timeout = dnsTimeout
 	response, _, err := client.Exchange(msg, dnsAddress)
 	if err != nil {
 		return false, fmt.Errorf("DNS query failed: %v", err)
 	}
 
-	// Check the DNS response for synchronization status
 	if len(response.Answer) > 0 {
 		if txtRecord, ok := response.Answer[0].(*dns.TXT); ok {
 			if txtRecord.Txt[0] == "true" {
@@ -101,13 +97,6 @@ func checkIfSynced() (bool, error) {
 	return false, nil
 }
 
-func PeriodicallySync(interval time.Duration, pathToExecutable, confPath, pathToCheckpoint string) {
-	for {
-		GetRoots(pathToExecutable, confPath, pathToCheckpoint)
-		time.Sleep(interval)
-	}
-}
-
 func GetRoots(pathToExecutable string, confPath string, pathToCheckpoint string) {
 	if pathToCheckpoint == "" {
 		home, _ := os.UserHomeDir() //above already fails if it doesn't exist
@@ -170,7 +159,8 @@ func GetRoots(pathToExecutable string, confPath string, pathToCheckpoint string)
 			}
 
 			if cmd.Process != nil && isSynced {
-				if err := cmd.Process.Signal(syscall.SIGINT); err != nil {
+				// if err := cmd.Process.Signal(syscall.SIGINT); err != nil {
+				if err := cmd.Process.Kill(); err != nil {
 					log.Fatal("Error killing hnsd: ", err)
 				}
 
diff --git a/tunnel.go b/tunnel.go
index f13d457..52652fb 100644
--- a/tunnel.go
+++ b/tunnel.go
@@ -21,7 +21,7 @@ import (
 )
 
 var (
-	Version = "0.0.14"
+	Version = "0.0.16"
 )
 
 const (