diff --git a/src/concurrency/scoped-threads.md b/src/concurrency/scoped-threads.md
index 1f58a828..95680e06 100644
--- a/src/concurrency/scoped-threads.md
+++ b/src/concurrency/scoped-threads.md
@@ -5,13 +5,16 @@ Normal threads cannot borrow from their environment:
 ```rust,editable,compile_fail
 use std::thread;
 
-fn main() {
+fn foo() {
     let s = String::from("Hello");
-
     thread::spawn(|| {
         println!("Length: {}", s.len());
     });
 }
+
+fn main() {
+    foo();
+}
 ```
 
 However, you can use a [scoped thread][1] for this: