diff --git a/pages/eight_assignments/blind_board/apply.vue b/pages/eight_assignments/blind_board/apply.vue
index 331ac23..0884f3c 100644
--- a/pages/eight_assignments/blind_board/apply.vue
+++ b/pages/eight_assignments/blind_board/apply.vue
@@ -304,8 +304,8 @@ export default {
         }
       })
     },
-    fnSign(event) {
-      this.form.SIGN = event.filePath
+    fnSign({ path }) {
+      this.form.SIGN = path
     },
     async fnSubmit() {
       try {