diff --git a/dnstun.go b/dnstun.go
index 559728b..2bfca59 100644
--- a/dnstun.go
+++ b/dnstun.go
@@ -10,7 +10,7 @@ type dnstun struct {
 	tcp Proxy
 }
 
-// DNSTun returns a dns forwarder. client -> dns.udp -> glider -> forwarder -> remote dns addr
+// DNSTun returns a dns forwarder.
 func DNSTun(addr, raddr string, upProxy Proxy) (Proxy, error) {
 	s := &dnstun{
 		proxy: newProxy(addr, upProxy),
diff --git a/systemd/README.md b/systemd/README.md
index 21e87f8..761b6b4 100644
--- a/systemd/README.md
+++ b/systemd/README.md
@@ -24,4 +24,4 @@ enable and start service: glider@***server***
 systemctl enable glider@server
 systemctl start glider@server
 ```
-See [glider@.service](systemd/glider%40.service)
+See [glider@.service](glider%40.service)