diff --git a/lib/src/lib.rs b/lib/src/lib.rs
index 3f6fe0f..807f4f5 100644
--- a/lib/src/lib.rs
+++ b/lib/src/lib.rs
@@ -5,7 +5,7 @@ use std::ops::Deref;
 use std::str::FromStr;
 
 /// The mqtt publish id of the bulb
-#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Ord, PartialOrd)]
+#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Ord, PartialOrd, Hash)]
 pub struct BulbId(pub String);
 
 #[derive(Serialize, Deserialize, Default, Debug, Clone)]
diff --git a/manager/src/manager.rs b/manager/src/manager.rs
index 7157f33..37e0179 100644
--- a/manager/src/manager.rs
+++ b/manager/src/manager.rs
@@ -283,5 +283,3 @@ impl BulbsState {
         self.bulbs.read().await
     }
 }
-
-use std::fmt::{self, Display, Formatter};