diff --git a/src/runtime/scheduler.go b/src/runtime/scheduler.go
index d3d61f48e..9ca54e1c0 100644
--- a/src/runtime/scheduler.go
+++ b/src/runtime/scheduler.go
@@ -4,8 +4,6 @@ import "internal/task"
 
 const schedulerDebug = false
 
-var mainExited bool
-
 var timerQueue *timerNode
 
 // Simple logging, for debugging.
diff --git a/src/runtime/scheduler_cooperative.go b/src/runtime/scheduler_cooperative.go
index 3cd8001c0..82ec24bee 100644
--- a/src/runtime/scheduler_cooperative.go
+++ b/src/runtime/scheduler_cooperative.go
@@ -27,6 +27,9 @@ const hasScheduler = true
 // concurrency, it does not have parallelism.
 const hasParallelism = false
 
+// Set to true after main.main returns.
+var mainExited bool
+
 // Queues used by the scheduler.
 var (
 	runqueue           task.Queue
diff --git a/src/runtime/scheduler_none.go b/src/runtime/scheduler_none.go
index 25bd7eb9c..82e720393 100644
--- a/src/runtime/scheduler_none.go
+++ b/src/runtime/scheduler_none.go
@@ -9,6 +9,9 @@ const hasScheduler = false
 // No goroutines are allowed, so there's no parallelism anywhere.
 const hasParallelism = false
 
+// Set to true after main.main returns.
+var mainExited bool
+
 // run is called by the program entry point to execute the go program.
 // With the "none" scheduler, init and the main function are invoked directly.
 func run() {