diff --git a/config/config.go b/config/config.go
index 28afdc6..62203a5 100644
--- a/config/config.go
+++ b/config/config.go
@@ -81,7 +81,7 @@ type Config struct {
 
 // DefaultConfig is a configuration that can be used as a fallback value.
 var DefaultConfig = Config{
-	Addr: "127.0.0.1:6881",
+	Addr: ":6881",
 
 	Tracker: DriverConfig{
 		Name: "memory",
diff --git a/example.json b/example.json
index ddfa196..83e8912 100644
--- a/example.json
+++ b/example.json
@@ -1,6 +1,6 @@
 {
   "network": "tcp",
-  "addr": "127.0.0.1:6881",
+  "addr": ":6881",
 
   "tracker": {
     "driver": "memory"