diff --git a/index.html b/index.html
index caaec1b..1089515 100644
--- a/index.html
+++ b/index.html
@@ -67,7 +67,7 @@
           
         </mdui-select>
 
-        <mdui-text-field type="text" id="custom-url-input" placeholder="输入自定义API，填域名即可，无需https://"
+        <mdui-text-field type="text" id="custom-url-input" placeholder="如无前缀，自动添加https://"
           class="hidden"></mdui-text-field>
 
         <div style="display: flex;">