diff --git a/lotus/utils.py b/lotus/utils.py
index 769fe940..f1547494 100644
--- a/lotus/utils.py
+++ b/lotus/utils.py
@@ -61,7 +61,7 @@ def ret(
         scores, indices = kmeans.index.search(vec_set, 1)
         
         # get the cluster centroids
-        centroids = kmeans.centroids
+        # centroids = kmeans.centroids
         # return indices.flatten(), scores.flatten(), centroids
         return indices.flatten()