diff --git a/src/runtime/netpoll.go b/src/runtime/netpoll.go
index 202aef593f..6c26fdbbeb 100644
--- a/src/runtime/netpoll.go
+++ b/src/runtime/netpoll.go
@@ -23,6 +23,9 @@ import (
 //     Arm edge-triggered notifications for fd. The pd argument is to pass
 //     back to netpollready when fd is ready. Return an errno value.
 //
+// func netpollclose(fd uintptr) int32
+//     Disable notifications for fd. Return an errno value.
+//
 // func netpoll(delta int64) gList
 //     Poll the network. If delta < 0, block indefinitely. If delta == 0,
 //     poll without blocking. If delta > 0, block for up to delta nanoseconds.