diff --git a/bar.go b/bar.go
index fe17e6f..7d6b2a1 100644
--- a/bar.go
+++ b/bar.go
@@ -227,7 +227,9 @@
 func (b *Bar) SetTotal(total int64, final bool) {
 	select {
 	case b.operateState <- func(s *bState) {
-		s.total = total
+		if total != 0 {
+			s.total = total
+		}
 		s.dynamic = !final
 	}:
 	case <-b.done: