diff --git a/packages/web/src/hooks/useWebSocket.ts b/packages/web/src/hooks/useWebSocket.ts
index 590f8b7b..0f46922e 100644
--- a/packages/web/src/hooks/useWebSocket.ts
+++ b/packages/web/src/hooks/useWebSocket.ts
@@ -50,6 +50,13 @@ function notifyFederationChangeListeners(): void {
   for (const cb of federationChangeListeners) cb();
 }
 
+const federationPeerResetDetectedListeners = new Set<(origin: string) => void>();
+
+export function onFederationPeerResetDetected(cb: (origin: string) => void): () => void {
+  federationPeerResetDetectedListeners.add(cb);
+  return () => { federationPeerResetDetectedListeners.delete(cb); };
+}
+
 // ─── Connection state ─────────────────────────────────────────────────────────
 
 interface ConnectionState {
@@ -826,6 +833,11 @@ function handleEvent(origin: string, event: ServerEvent): void {
       break;
     }
 
+    case 'federation_peer_reset_detected': {
+      for (const cb of federationPeerResetDetectedListeners) cb(event.origin);
+      break;
+    }
+
     case 'federation_approval_request_received': {
       notifyFederationChangeListeners();
       break;