diff --git a/src/ui/src/components/ui/auth/auth.vue b/src/ui/src/components/ui/auth/auth.vue
index 119a8d8a63..2f616adfcc 100644
--- a/src/ui/src/components/ui/auth/auth.vue
+++ b/src/ui/src/components/ui/auth/auth.vue
@@ -35,7 +35,7 @@
         authMetas: null,
         isAuthorized: false,
         disabled: true,
-        useIAM: window.CMDB_CONFIG?.site?.authscheme === 'iam'
+        useIAM: this.$Site.authscheme === 'iam'
       }
     },
     watch: {