diff --git a/peach-lib/examples/config.rs b/peach-lib/examples/config.rs
index 2580150..756bfe4 100644
--- a/peach-lib/examples/config.rs
+++ b/peach-lib/examples/config.rs
@@ -5,7 +5,7 @@ fn main() {
     let v = get_config_value("ADDR").unwrap();
     println!("ADDR: {}", v);
 
-    save_config_value("ADDR", "1.1.1.1".to_string());
+    save_config_value("ADDR", "1.1.1.1");
     let v = get_config_value("ADDR").unwrap();
     println!("ADDR: {}", v);
 }