diff --git a/exercises/functions/functions3.rs b/exercises/functions/functions3.rs
index 3b9e585b..d5eda8e8 100644
--- a/exercises/functions/functions3.rs
+++ b/exercises/functions/functions3.rs
@@ -1,10 +1,8 @@
 // functions3.rs
 // Execute `rustlings hint functions3` or use the `hint` watch subcommand for a hint.
 
-// I AM NOT DONE
-
 fn main() {
-    call_me();
+    call_me(25);
 }
 
 fn call_me(num: u32) {