diff --git a/backend/app/admin/service/oauth2_service.py b/backend/app/admin/service/oauth2_service.py
index d0e21ef3..a371dac0 100644
--- a/backend/app/admin/service/oauth2_service.py
+++ b/backend/app/admin/service/oauth2_service.py
@@ -69,7 +69,7 @@ class OAuth2Service:
                 # extra info
                 username=sys_user.username,
                 nickname=sys_user.nickname,
-                last_login_time=timezone.t_str(user.last_login_time),
+                last_login_time=timezone.t_str(sys_user.last_login_time),
                 ip=request.state.ip,
                 os=request.state.os,
                 browser=request.state.browser,