diff --git a/domains/_github-pages-challenge-SkyShadowHero.skyshadowhero.is-cool.dev.json b/domains/_github-pages-challenge-SkyShadowHero.skyshadowhero.is-cool.dev.json
index 8222d382..0234ed0e 100644
--- a/domains/_github-pages-challenge-SkyShadowHero.skyshadowhero.is-cool.dev.json
+++ b/domains/_github-pages-challenge-SkyShadowHero.skyshadowhero.is-cool.dev.json
@@ -2,7 +2,7 @@
     "description": "my github blog page",
 
     "domain": "is-cool.dev",
-    "subdomain": "skyshadowhero",
+    "subdomain": "_github-pages-challenge-SkyShadowHero.skyshadowhero",
 
     "owner": {
         "email": "a1233456333@163.com"