diff --git a/ding/entry/serial_entry_mbrl.py b/ding/entry/serial_entry_mbrl.py
index 426e4ca667..edb97e0c62 100644
--- a/ding/entry/serial_entry_mbrl.py
+++ b/ding/entry/serial_entry_mbrl.py
@@ -78,9 +78,7 @@ def mbrl_entry_setup(
         cfg.policy.other.commander, learner, collector, evaluator, env_buffer, policy.command_mode
     )
 
-    return (
-        cfg, policy, world_model, env_buffer, learner, collector, collector_env, evaluator, commander, tb_logger
-    )
+    return (cfg, policy, world_model, env_buffer, learner, collector, collector_env, evaluator, commander, tb_logger)
 
 
 def create_img_buffer(