diff --git a/main.go b/main.go
index c1b4d1d..29d9120 100644
--- a/main.go
+++ b/main.go
@@ -160,9 +160,9 @@ func writePipe(pipe chan interface{}) (ok bool) {
 	if pipe != nil {
 		for {
 			select {
-			case item, ok := <-pipe:
-				if !ok {
-					return false
+			case item, more := <-pipe:
+				if !more {
+					return okFlag
 				} else {
 					switch item.(type) {