diff --git a/lerobot/configs/default.yaml b/lerobot/configs/default.yaml
index 2dc313e4..01a02a70 100644
--- a/lerobot/configs/default.yaml
+++ b/lerobot/configs/default.yaml
@@ -27,6 +27,7 @@ fps: ???
 offline_prioritized_sampler: true
 
 n_action_steps: ???
+n_obs_steps: ???
 env: ???
 
 policy: ???