diff --git a/Sources/AutomergeRepo/Repo.swift b/Sources/AutomergeRepo/Repo.swift
index cc2cb9a..5b973f5 100644
--- a/Sources/AutomergeRepo/Repo.swift
+++ b/Sources/AutomergeRepo/Repo.swift
@@ -11,7 +11,7 @@ public protocol EphemeralMessageDelegate: Sendable {
 }
 
 public actor Repo {
-    public let peerId: PEER_ID
+    nonisolated public let peerId: PEER_ID
     public var localPeerMetadata: PeerMetadata
 
     private var handles: [DocumentId: InternalDocHandle] = [:]