diff --git a/exercises/intro/intro2.rs b/exercises/intro/intro2.rs
index 61405c84..7a00e8d6 100644
--- a/exercises/intro/intro2.rs
+++ b/exercises/intro/intro2.rs
@@ -3,5 +3,6 @@
 // Execute `rustlings hint intro2` or use the `hint` watch subcommand for a hint.
 
 fn main() {
-    println!("Hello {}!", "world");
+    let world = "world";
+    println!("Hello {world}!");
 }