diff --git a/selfdrive/test/process_replay/test_processes.py b/selfdrive/test/process_replay/test_processes.py
index d8cd1fd57a..77d73a4ff4 100755
--- a/selfdrive/test/process_replay/test_processes.py
+++ b/selfdrive/test/process_replay/test_processes.py
@@ -217,7 +217,8 @@ if __name__ == "__main__":
     results: Any = defaultdict(dict)
     p2 = pool.map(run_test_process, pool_args)
     for (segment, proc, subtest_name, result) in tqdm(p2, desc="Running Tests", total=len(pool_args)):
-      results[segment][proc + subtest_name] = result
+      if isinstance(result, list):
+        results[segment][proc + subtest_name] = result
 
   diff1, diff2, failed = format_diff(results, ref_commit)
   if not upload: