diff --git a/exercises/intro/intro2.rs b/exercises/intro/intro2.rs
index efc1af20..49b3a150 100644
--- a/exercises/intro/intro2.rs
+++ b/exercises/intro/intro2.rs
@@ -5,5 +5,6 @@
 // I AM NOT DONE
 
 fn main() {
-    println!("Hello {}!");
+    let world = "world";
+    println!("Hello {world}!");
 }