diff --git a/src/main.rs b/src/main.rs
index 59d5147..7acdfcf 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -14,7 +14,7 @@ pub const LOOP_WAIT: u64 = 250;
 fn main() {
     let p: RawColor = [0, 0, 0, 0];
     let lock = Arc::new(RwLock::new([p; LED_SIZE]));
-    let mut pattern: Arc<Mutex<Vec<Box<dyn Pattern>>>> = Arc::new(Mutex::new(Vec::new()));
+    let pattern: Arc<Mutex<Vec<Box<dyn Pattern>>>> = Arc::new(Mutex::new(Vec::new()));
     let read = Arc::clone(&lock);
     //light management
     thread::spawn(move || {
@@ -45,8 +45,8 @@ fn main() {
         thread::sleep(time::Duration::from_millis(LOOP_WAIT));
         let c_lock = Arc::clone(&lock);
         let mut lights = c_lock.write().unwrap();
-        let mut data = pattern.lock().unwrap();
-        for p in *data {
+        let data = pattern.lock().unwrap();
+        for p in &*data {
             //let c_lock = Arc::clone(&lock);
             //let mut lights = c_lock.write().unwrap();
             p.execute(&mut lights, ticks);