diff --git a/src/views/trials/trials-panel/attachments/enrollment/components/Selection.vue b/src/views/trials/trials-panel/attachments/enrollment/components/Selection.vue
index 282b4fdf..561999f6 100644
--- a/src/views/trials/trials-panel/attachments/enrollment/components/Selection.vue
+++ b/src/views/trials/trials-panel/attachments/enrollment/components/Selection.vue
@@ -316,6 +316,7 @@
           width="150"
         />
         <el-table-column
+          fixed="right"
           prop="OptTimeStr"
           :label="$t('common:action:action')"
           width="150"