diff --git a/selfdrive/test/process_replay/test_processes.py b/selfdrive/test/process_replay/test_processes.py
index 57f9d00a08579f..730b0ed290aa0c 100755
--- a/selfdrive/test/process_replay/test_processes.py
+++ b/selfdrive/test/process_replay/test_processes.py
@@ -193,6 +193,7 @@ def test_process(cfg, lr, segment, ref_log_path, new_log_path, ignore_fields=Non
         if cfg.proc_name not in tested_procs:
           continue
 
+        # to speed things up, only test all segments on card
         if cfg.proc_name != 'card' and car_brand not in ['HYUNDAI', 'TOYOTA', 'HONDA', 'RAM', 'SUBARU', 'VOLKSWAGEN', 'FORD']:
           continue