diff --git a/decor/merge.go b/decor/merge.go
index 44001c8..2b9ae87 100644
--- a/decor/merge.go
+++ b/decor/merge.go
@@ -60,11 +60,7 @@
 		pWidth += <-ph.wsync
 	}
 
-	if msgLen > pWidth {
-		d.wc.wsync <- msgLen - pWidth
-	} else {
-		d.wc.wsync <- msgLen
-	}
+	d.wc.wsync <- msgLen - pWidth
 
 	max := <-d.wc.wsync
 	if (d.wc.C & DextraSpace) != 0 {