diff --git a/base/timing.jl b/base/timing.jl
index 9aa2208c90e6de..ab70a7dc567abc 100644
--- a/base/timing.jl
+++ b/base/timing.jl
@@ -634,7 +634,7 @@ macro timed(ex)
             )
             local diff = GC_Diff(gc_num(), stats)
             local sched_times = Int[]
-            for i in 1:Threads.maxthreadid()
+            for i in 1:length(task_times_per_thread[])
                 # filter out zeros in task timers which can only happen if nothing was scheduled
                 if task_times_per_thread[][i] != 0
                     # subtract task and sleep times from global elapsed time to get scheduling time per thread