diff --git a/src/runtime/debug.go b/src/runtime/debug.go
index 60c03e4f52..f411b22676 100644
--- a/src/runtime/debug.go
+++ b/src/runtime/debug.go
@@ -12,6 +12,7 @@ import (
 // GOMAXPROCS sets the maximum number of CPUs that can be executing
 // simultaneously and returns the previous setting. It defaults to
 // the value of runtime.NumCPU. If n < 1, it does not change the current setting.
+// This call will go away when the scheduler improves.
 func GOMAXPROCS(n int) int {
 	if GOARCH == "wasm" && n > 1 {
 		n = 1 // WebAssembly has no threads yet, so only one CPU is possible.