diff --git a/src/config.rs b/src/config.rs
index 248d460..be81781 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -126,7 +126,7 @@ pub struct MqttDeviceConfig {
     pub topic: String,
 }
 
-#[derive(Debug, Clone, Deserialize, PartialEq, Eq)]
+#[derive(Debug, Clone, Deserialize, PartialEq, Eq, Copy)]
 pub enum OutletType {
     Outlet,
     Kettle,