diff --git a/README.md b/README.md
index 616b2e8..856042d 100644
--- a/README.md
+++ b/README.md
@@ -66,7 +66,7 @@
 
 ```go
     var wg sync.WaitGroup
-    // pass &wg (optional), so p will wait for it eventually
+    // passed &wg will be accounted at p.Wait() call
     p := mpb.New(mpb.WithWaitGroup(&wg))
     total, numBars := 100, 3
     wg.Add(numBars)
diff --git a/_examples/multiBars/main.go b/_examples/multiBars/main.go
index 06e8db3..b16562a 100644
--- a/_examples/multiBars/main.go
+++ b/_examples/multiBars/main.go
@@ -12,7 +12,7 @@
 
 func main() {
 	var wg sync.WaitGroup
-	// pass &wg (optional), so p will wait for it eventually
+	// passed &wg will be accounted at p.Wait() call
 	p := mpb.New(mpb.WithWaitGroup(&wg))
 	total, numBars := 100, 3
 	wg.Add(numBars)