diff --git a/egs/librispeech/ASR/local/compute_fbank_librispeech.py b/egs/librispeech/ASR/local/compute_fbank_librispeech.py
index 745eaf1e8..554d7f109 100755
--- a/egs/librispeech/ASR/local/compute_fbank_librispeech.py
+++ b/egs/librispeech/ASR/local/compute_fbank_librispeech.py
@@ -121,10 +121,10 @@ def compute_fbank_librispeech(
                 recordings=m["recordings"],
                 supervisions=m["supervisions"],
             )
-            if bpe_model:
-                cut_set = filter_cuts(cut_set, sp)
 
             if "train" in partition:
+                if bpe_model:
+                    cut_set = filter_cuts(cut_set, sp)
                 cut_set = (
                     cut_set + cut_set.perturb_speed(0.9) + cut_set.perturb_speed(1.1)
                 )