diff --git a/src/views/tool/help/index.vue b/src/views/tool/help/index.vue
index 40f72ebd..ae24c2f7 100644
--- a/src/views/tool/help/index.vue
+++ b/src/views/tool/help/index.vue
@@ -70,7 +70,8 @@ function fnDownload() {
   fetch(url)
     .then(response => response.blob())
     .then(blob => {
-      const fileName = url.substring(url.lastIndexOf('/') + 1);
+      let fileName = url.substring(url.lastIndexOf('/') + 1);
+      fileName = fileName.split('?')[0];
       saveAs(blob, fileName);
     })
     .catch(error => {