diff --git a/examples/demo.py b/examples/demo.py
index 25e9b8cbf52c45d4afa9cc76b5456ec211fb8f73..01ef58a2c27da22f4567f2b4722310c85c49e0ba 100644
--- a/examples/demo.py
+++ b/examples/demo.py
@@ -107,7 +107,6 @@ class Demo:
             # environment step (apply the actions to all agents)
             next_obs, all_rewards, done, _ = self.env.step(action_dict)
 
-
             if done['__all__']:
                 break