diff --git a/blackjax/util.py b/blackjax/util.py
index 3cf5c90fb..d761189cf 100644
--- a/blackjax/util.py
+++ b/blackjax/util.py
@@ -200,14 +200,8 @@ def one_step(state, xs):
         state, info = inference_algorithm.step(rng_key, state)
         return state, transform(state, info)
 
-    xs = (jnp.arange(num_steps), keys)
     if progress_bar:
         one_step = progress_bar_scan(num_steps)(one_step)
-        (((_, average), final_state), _), history = lax.scan(
-            one_step,
-            (((0, expectation(transform(initial_state))), initial_state), -1),
-            xs,
-        )
 
     xs = jnp.arange(num_steps), keys
     final_state, history = lax.scan(one_step, initial_state, xs)