diff --git a/app/ui/contact/export_dialog.py b/app/ui/contact/export_dialog.py
index b68ecf0..2845a6e 100644
--- a/app/ui/contact/export_dialog.py
+++ b/app/ui/contact/export_dialog.py
@@ -12,7 +12,7 @@ types = {
     '语音': 34,
     '视频': 43,
     '表情包': 47,
-    '文件': 49_06,
+    '文件': 4906,
     '拍一拍等系统消息': 10000
 }
 Stylesheet = """