diff --git a/internal/datacoord/segment_info.go b/internal/datacoord/segment_info.go
index a9ac2dc671a7c..8d9f6d08bdd13 100644
--- a/internal/datacoord/segment_info.go
+++ b/internal/datacoord/segment_info.go
@@ -508,9 +508,10 @@ func (s *SegmentInfo) getSegmentSize() int64 {
 	return s.size.Load()
 }
 
-// getDeltaCount use cached value when segment is immutable
+// L1 segment deltaCount changes in any state
+// L0 segment deltaCount won't change
 func (s *SegmentInfo) getDeltaCount() int64 {
-	if s.deltaRowcount.Load() < 0 || s.State != commonpb.SegmentState_Flushed {
+	if s.deltaRowcount.Load() <= 0 || s.GetLevel() != datapb.SegmentLevel_L0 {
 		var rc int64
 		for _, deltaLogs := range s.GetDeltalogs() {
 			for _, l := range deltaLogs.GetBinlogs() {