diff --git a/pyemma/coordinates/clustering/uniform_time.py b/pyemma/coordinates/clustering/uniform_time.py
index <HASH>..<HASH> 100644
--- a/pyemma/coordinates/clustering/uniform_time.py
+++ b/pyemma/coordinates/clustering/uniform_time.py
@@ -82,7 +82,7 @@ class UniformTimeClustering(AbstractClustering):
         # random access matrix
         ra_stride = np.array([UniformTimeClustering._idx_to_traj_idx(x, cumsum) for x in linspace])
         self.clustercenters = np.concatenate([X for X in
-                                              iterable.iterator(stride=ra_stride, return_trajindex=False, **kw)])
+                                              iterable.iterator(stride=ra_stride, return_trajindex=False)])
         assert len(self.clustercenters) == self.n_clusters
         return self
[uniform-t-clustering] do not pass kw into iterator