diff --git a/examples/atp.rs b/examples/atp.rs
index da2785b..363b3c4 100644
--- a/examples/atp.rs
+++ b/examples/atp.rs
@@ -126,7 +126,7 @@ fn main() {
         chart
             .draw_series(LineSeries::new(data, &color))
             .unwrap()
-            .label(format!("{}", player))
+            .label(player)
             .legend(move |(x, y)| PathElement::new(vec![(x, y), (x + 20, y)], &color));
     }