diff --git a/src/modules/network_data/service/cdr_event_mf.go b/src/modules/network_data/service/cdr_event_mf.go
index fc8da29d..04f801dc 100644
--- a/src/modules/network_data/service/cdr_event_mf.go
+++ b/src/modules/network_data/service/cdr_event_mf.go
@@ -152,7 +152,7 @@ func (r CDREventMF) ExportXlsx(rows []model.CDREventMF, fileName, language strin
 			case json.RawMessage:
 				msd = string(vv)
 			case map[string]interface{}:
-				// 如果是对象，序列化为json.RawMessage
+				// 如果是对象，序列化为json
 				b, _ := json.Marshal(vv)
 				msd = string(b)
 			}