diff --git a/public/react/src/modules/courses/shixunHomework/Listofworks.js b/public/react/src/modules/courses/shixunHomework/Listofworks.js
index c3604f314..396995b78 100644
--- a/public/react/src/modules/courses/shixunHomework/Listofworks.js
+++ b/public/react/src/modules/courses/shixunHomework/Listofworks.js
@@ -1417,7 +1417,7 @@ class Listofworks extends Component {
 				console.log(Base64.decode(response.headers['content-disposition'].split('=')[1]));
         const  string = response.headers['content-disposition'].split('=')[1];
 				var index=string.lastIndexOf("\.");
-				const name=obj.substring(0,index);
+				const name=string.substring(0,index);
 				console.log(Base64.decode(name));
 				downloadElement.href = href
 				downloadElement.download = Base64.decode(name)+".xlsx";