diff --git a/python/sglang/srt/managers/io_struct.py b/python/sglang/srt/managers/io_struct.py
index b30c9216f..2908b05bf 100644
--- a/python/sglang/srt/managers/io_struct.py
+++ b/python/sglang/srt/managers/io_struct.py
@@ -1517,3 +1517,6 @@ def _check_all_req_types():
             raise ValueError(
                 f"{name} is a subclass of BaseReq but not follow the naming convention."
             )
+
+
+_check_all_req_types()
diff --git a/test/srt/run_suite.py b/test/srt/run_suite.py
index a26328ce9..1aa100e53 100644
--- a/test/srt/run_suite.py
+++ b/test/srt/run_suite.py
@@ -108,7 +108,6 @@ suites = {
         TestFile("test_radix_attention.py", 105),
         TestFile("test_radix_cache_unit.py", 5),
         TestFile("test_reasoning_parser.py", 5),
-        TestFile("test_regex_constrained.py", 64),
         TestFile("test_request_queue_validation.py", 30),
         TestFile("test_retract_decode.py", 450),
         TestFile("test_score_api.py", 310),