diff --git a/src/main.rs b/src/main.rs
index 5611d90..e354b99 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -41,7 +41,7 @@ fn main() {
         if res.is_ok() {
             let v: Vec<Box<dyn Pattern>> = res.unwrap();
             for x in 0..v.len() {
-                lights = v[x].execute(&mut lights);
+                lights = *(v[x].execute(&mut lights));
             }
         }
     }
diff --git a/src/util/pattern.rs b/src/util/pattern.rs
index dbe9520..4f42ff9 100644
--- a/src/util/pattern.rs
+++ b/src/util/pattern.rs
@@ -25,7 +25,7 @@ impl<'a> TryFrom<Vec<String>> for Box<dyn Pattern<'a>> {
 
 struct Unit;
 impl<'a> Pattern<'a> for Unit {
-    fn execute(&self, values: &'a mut RwLockWriteGuard<'_, [RawColor; crate::LED_SIZE]>) {
+    fn execute(&self, values: &'a mut RwLockWriteGuard<'_, [RawColor; crate::LED_SIZE]>) -> &'a mut RwLockWriteGuard<'_, [RawColor; crate::LED_SIZE]> {
         values
     }
     fn parse(_args: Vec<String>) -> Result<Self, ParseError> {
@@ -40,7 +40,7 @@ struct Value {
 }
 
 impl<'a> Pattern<'a> for Value {
-    fn execute(&self, values: &'a mut RwLockWriteGuard<'_, [RawColor; crate::LED_SIZE]>) {
+    fn execute(&self, values: &'a mut RwLockWriteGuard<'_, [RawColor; crate::LED_SIZE]>) -> &'a mut RwLockWriteGuard<'_, [RawColor; crate::LED_SIZE]> {
         for i in 0..crate::LED_SIZE {
             let mut color: RawColor = (*values)[i];
             if self.r.is_some() {