diff --git a/container_option.go b/container_option.go
index 7ef42f2..fd0d644 100644
--- a/container_option.go
+++ b/container_option.go
@@ -93,7 +93,9 @@
 	}
 }
 
-// PopCompletedMode will pop and stop rendering completed bars.
+// PopCompletedMode will pop completed bars to the top.
+// To stop rendering bar after it has been popped, use
+// mpb.BarRemoveOnComplete() option on that bar.
 func PopCompletedMode() ContainerOption {
 	return func(s *pState) {
 		s.popCompleted = true