diff --git a/solutions/compound-types/string.md b/solutions/compound-types/string.md
index db02eab..2bd6c12 100644
--- a/solutions/compound-types/string.md
+++ b/solutions/compound-types/string.md
@@ -16,6 +16,16 @@ fn main() {
      println!("{}",s)
  }
 ```
+```rust
+fn main() {
+    let s: Box<&str> = "hello, world".into();
+    greetings(*s)
+}
+
+fn greetings(s: &str) {
+    println!("{}", s);
+}
+```
 
 3. 
 ```rust
@@ -171,4 +181,4 @@ fn main() {
         println!("{}", c)
     }
 }
-```
\ No newline at end of file
+```