diff --git a/docs/guide/examples.rst b/docs/guide/examples.rst
index 3af5561..c39ce26 100644
--- a/docs/guide/examples.rst
+++ b/docs/guide/examples.rst
@@ -45,15 +45,15 @@ Train a PPO with invalid action masking agent on a toy environment.
   model.learn(5000)
   model.save("qrdqn_cartpole")
 
-  TRPO
-  ----
+TRPO
+----
 
-  Train a Trust Region Policy Optimization (TRPO) agent on the Pendulum environment.
+Train a Trust Region Policy Optimization (TRPO) agent on the Pendulum environment.
 
-  .. code-block:: python
+.. code-block:: python
 
-    from sb3_contrib import TRPO
+  from sb3_contrib import TRPO
 
-    model = TRPO("MlpPolicy", "Pendulum-v0", gamma=0.9, verbose=1)
-    model.learn(total_timesteps=100_000, log_interval=4)
-    model.save("trpo_pendulum")
+  model = TRPO("MlpPolicy", "Pendulum-v0", gamma=0.9, verbose=1)
+  model.learn(total_timesteps=100_000, log_interval=4)
+  model.save("trpo_pendulum")