diff --git a/decor/merge.go b/decor/merge.go
index e33fb5d..06abf91 100644
--- a/decor/merge.go
+++ b/decor/merge.go
@@ -48,8 +48,8 @@
 	return decorators
 }
 
-func (md *mergeDecorator) Sync() (chan int, bool) {
-	return md.wc.Sync()
+func (d *mergeDecorator) Sync() (chan int, bool) {
+	return d.wc.Sync()
 }
 
 func (d *mergeDecorator) Decor(st *Statistics) string {