diff --git a/emitter.go b/emitter.go
index 73000d9..00efb32 100644
--- a/emitter.go
+++ b/emitter.go
@@ -52,6 +52,7 @@ func Start(plugins *InOutPlugins, stop chan int) {
 	}
 }
 
+// Close closes all the goroutine and waits for it to finish.
 func Close(quit chan int) {
 	closeOnce.Do(func() {
 		close(quit)