diff --git a/blackjax/util.py b/blackjax/util.py
index 37133a4b5..070ca8687 100644
--- a/blackjax/util.py
+++ b/blackjax/util.py
@@ -251,7 +251,6 @@ def streaming_average(O, x, streaming_avg, weight=1.0, zero_prevention=0.0):
         new streaming average
     """
 
-    # x, _ = ravel_pytree(x)
     expectation = O(x)
     flat_expectation, unravel_fn = ravel_pytree(expectation)
     total, average = streaming_avg