diff --git a/src/protocol/arena.rs b/src/protocol/arena.rs
index e83360611516969e9e1e97dfff8898cea39fb9a3..b26df73d73b1cb9e3cac8f6fd76bf93297753a69 100644
--- a/src/protocol/arena.rs
+++ b/src/protocol/arena.rs
@@ -1,7 +1,7 @@
 use core::hash::Hash;
 use core::marker::PhantomData;
 
-#[derive(Debug, serde::Serialize)]
+#[derive(Debug, serde::Serialize, serde::Deserialize)]
 pub struct Id<T> {
     index: u32,
     _phantom: PhantomData<T>,