diff --git a/lib/client/websocket-tracker.js b/lib/client/websocket-tracker.js
index 8b00aaf..280ca8f 100644
--- a/lib/client/websocket-tracker.js
+++ b/lib/client/websocket-tracker.js
@@ -166,7 +166,7 @@ WebSocketTracker.prototype._onSocketData = function (data) {
     self._trackerId = trackerId
   }
 
-  if (data.complete) {
+  if (data.complete != null) {
     self.client.emit('update', {
       announce: self.announceUrl,
       complete: data.complete,