diff --git a/src/crystal/scheduler.cr b/src/crystal/scheduler.cr index 0667626f787e..588a9b595962 100644 --- a/src/crystal/scheduler.cr +++ b/src/crystal/scheduler.cr @@ -191,7 +191,7 @@ class Crystal::Scheduler protected def find_target_thread if workers = @@workers - @rr_target += 1 + @rr_target &+= 1 workers[@rr_target % workers.size] else Thread.current