diff --git a/src/io/clock.js b/src/io/clock.js
index 086baf02..4030a196 100644
--- a/src/io/clock.js
+++ b/src/io/clock.js
@@ -48,7 +48,6 @@ class Clock {
     resetProjectTimer () {
         this._projectTimer.start();
         // tw: also reset precise timer
-        this._preciseProjectTimer.start();
         this._preciseProjectTimer.startTime = this._projectTimer.startTime;
     }
 }