diff --git a/src/components/student/TableStudent.vue b/src/components/student/TableStudent.vue
index 24ab348d..7dc767d9 100644
--- a/src/components/student/TableStudent.vue
+++ b/src/components/student/TableStudent.vue
@@ -618,7 +618,7 @@ function exportTaskStu() {
   window.open(
     `${
       process.env.VUE_APP_BASE_API
-    }/admin/student/exportTaskStudent?type=${1}&pid=${props.id}&studentName=${tableParam.value.studentName}&studentDepartName=${tableParam.value.studentDepartName}&topFlag=${tableParam.value.topFlag}`
+    }/admin/student/exportTaskStudent?type=${1}&pid=${props.id}&studentName=${tableParam.value.studentName === null ?'':tableParam.value.studentName}&studentDepartName=${tableParam.value.studentDepartName===null?'':tableParam.value.studentDepartName}&topFlag=${tableParam.value.topFlag===null?'':tableParam.value.topFlag}`
   );
 }