diff --git a/internal/storage/data_codec.go b/internal/storage/data_codec.go
index ca82243b4670a30d65b69a6c26b2e33f516b0c54..b18d2a1ed5decd804803a5016dafd7e9df6dacc6 100644
--- a/internal/storage/data_codec.go
+++ b/internal/storage/data_codec.go
@@ -256,7 +256,7 @@ func NewInsertCodec(schema *etcdpb.CollectionMeta) *InsertCodec {
 
 // Serialize transfer insert data to blob. It will sort insert data by timestamp.
 // From schema, it get all fields.
-// For each field, it will create a binlog writer, and write a event to the binlog.
+// For each field, it will create a binlog writer, and write an event to the binlog.
 // It returns binlog buffer in the end.
 func (insertCodec *InsertCodec) Serialize(partitionID UniqueID, segmentID UniqueID, data *InsertData) ([]*Blob, []*Blob, error) {
 	blobs := make([]*Blob, 0)