diff --git a/src/main.rs b/src/main.rs
index ac3ce0c..76b710e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -32,15 +32,15 @@ fn main() {
     });
     loop {
         thread::sleep(time::Duration::from_millis(250));
-        let mut lights = lock.write().unwrap();
         let pattern = format_multiline("unit");
-        let res: Result<Vec<Box<dyn Pattern>>> = pattern.iter()
+        let res: Result<Vec<Box<dyn Pattern>>, ParseError> = pattern.iter()
             .map(|x: &Vec<String>| parse_line((*x).clone()))
             .collect();
 
         if res.is_ok() {
             let v: Vec<Box<dyn Pattern>> = res.unwrap();
             for x in 0..v.len() {
+                let mut lights = lock.write().unwrap();
                 v[x].execute(&mut lights);
             }
         }