diff --git a/src/apps/AppAskForm/formDetail.vue b/src/apps/AppAskForm/formDetail.vue
index acf45327..3cdafa8d 100644
--- a/src/apps/AppAskForm/formDetail.vue
+++ b/src/apps/AppAskForm/formDetail.vue
@@ -23,7 +23,7 @@
           </template>
           <template v-else-if="op.fieldType=='upload'">
             <ai-uploader @list="v=>op.fieldValue=v.map(e=>e.url)" :def="op.fieldValue" :disabled="isResult"
-                         preview/>
+                         preview action="/admin/file/add2"/>
           </template>
           <u-row v-else-if="op.fieldType=='radio'">
             <radio-group @change="({detail})=>op.fieldValue=detail.value">