diff --git a/docs/source/fastwam.mdx b/docs/source/fastwam.mdx
index f36ed1e4e..bdef0ad92 100644
--- a/docs/source/fastwam.mdx
+++ b/docs/source/fastwam.mdx
@@ -84,8 +84,8 @@ lerobot-eval \
   --policy.n_action_steps=10 \
   --env.type=libero \
   --env.task=libero_10 \
-  --env.observation_height=256 \
-  --env.observation_width=256 \
+  --env.observation_height=224 \
+  --env.observation_width=224 \
   --eval.batch_size=1 \
   --eval.n_episodes=50 \
   --seed=0 \