diff --git a/docs/misc/sign/wbi.md b/docs/misc/sign/wbi.md
index 571cba0362..7ed51b242f 100644
--- a/docs/misc/sign/wbi.md
+++ b/docs/misc/sign/wbi.md
@@ -163,7 +163,7 @@ def encWbi(params: dict, img_key: str, sub_key: str):
 
 def getWbiKeys() -> tuple[str, str]:
     '获取最新的 img_key 和 sub_key'
-     headers = {
+    headers = {
         'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3',
         'Referer': 'https://www.bilibili.com/'
     }