diff --git a/tools/replay/replay.cc b/tools/replay/replay.cc
index 28adcffb9..a5e227d87 100644
--- a/tools/replay/replay.cc
+++ b/tools/replay/replay.cc
@@ -100,7 +100,7 @@ void Replay::start(int seconds) {
 }
 
 void Replay::updateEvents(const std::function<bool()> &lambda) {
-  // set updating_events to true to force stream thread release the lock and wait for evnets_udpated.
+  // set updating_events to true to force stream thread release the lock and wait for events_updated.
   updating_events_ = true;
   {
     std::unique_lock lk(stream_lock_);