diff --git a/lib/server/swarm.js b/lib/server/swarm.js
index 6480052..d8a26e5 100644
--- a/lib/server/swarm.js
+++ b/lib/server/swarm.js
@@ -82,8 +82,8 @@ Swarm.prototype._onAnnounceCompleted = function (params, peer, id) {
     return this._onAnnounceStarted(params, peer, id) // treat as a start
   }
   if (peer.complete) {
-    debug('unexpected `completed` event from peer that is already marked as completed')
-    return // do nothing
+    debug('unexpected `completed` event from peer that is already completed')
+    return this._onAnnounceUpdate(params, peer, id) // treat as an update
   }
 
   this.complete += 1