diff --git a/test/registered/debug_utils/test_schedule_simulator.py b/test/registered/debug_utils/test_schedule_simulator.py
index 6f314f7bb..0a9e5b04c 100644
--- a/test/registered/debug_utils/test_schedule_simulator.py
+++ b/test/registered/debug_utils/test_schedule_simulator.py
@@ -18,8 +18,12 @@ from sglang.srt.debug_utils.schedule_simulator import (
     generate_random_requests,
     load_from_request_logger,
 )
+from sglang.test.ci.ci_register import register_cpu_ci
 from sglang.test.test_utils import CustomTestCase
 
+register_cpu_ci(est_time=60, suite="default", nightly=True)
+
+
 # ==================== Non-E2E Tests ====================