diff --git a/web/html/xui/fakedns_modal.html b/web/html/xui/fakedns_modal.html
index 7f665e97..c3abe5d5 100644
--- a/web/html/xui/fakedns_modal.html
+++ b/web/html/xui/fakedns_modal.html
@@ -7,7 +7,7 @@
             <a-input v-model.trim="fakednsModal.fakeDns.ipPool"></a-input>
         </a-form-item>
         <a-form-item label='{{ i18n "pages.xray.fakedns.poolSize" }}'>
-          <a-input-number type="number" min="1" v-model.trim="fakednsModal.fakeDns.poolSize"></a-input-number>
+          <a-input-number style="width: 100%;" type="number" min="1" v-model.trim="fakednsModal.fakeDns.poolSize"></a-input-number>
         </a-form-item>
     </a-form>
 </a-modal>