diff --git a/exercises/07_threads/01_threads/src/lib.rs b/exercises/07_threads/01_threads/src/lib.rs
index b31d0143c3..15bb7d1355 100644
--- a/exercises/07_threads/01_threads/src/lib.rs
+++ b/exercises/07_threads/01_threads/src/lib.rs
@@ -20,8 +20,8 @@ pub fn sum(v: Vec<i32>) -> i32 {
     let v1 = v1.to_vec();
     let v2 = v2.to_vec();
 
-    let handle1 = thread::spawn(move || v1.into_iter().sum::<i32>());
-    let handle2 = thread::spawn(move || v2.into_iter().sum::<i32>());
+    let handle1 = thread::spawn(|| v1.into_iter().sum::<i32>());
+    let handle2 = thread::spawn(|| v2.into_iter().sum::<i32>());
 
     handle1.join().unwrap() + handle2.join().unwrap()
 }