diff --git a/Program.cs b/Program.cs
index de5137f..2d59fff 100644
--- a/Program.cs
+++ b/Program.cs
@@ -479,7 +479,7 @@ public class Game : GameWindow {
       }
     }
     if (photos[photoIndex].Loaded) {
-      Texture label = Util.RenderText(String.Format("zoom: {0:F1}%", scale * 100));
+      Texture label = Util.RenderText($"zoom: {(scale * 100):F1}%");
       DrawTexture(label, Util.MakeBox(10, 10, label.Size.X, label.Size.Y));
       label.Dispose();
     }