diff --git a/egs/reazonspeech/ASR/zipformer/train.py b/egs/reazonspeech/ASR/zipformer/train.py
index 0bd2542fe..738d50a7f 100755
--- a/egs/reazonspeech/ASR/zipformer/train.py
+++ b/egs/reazonspeech/ASR/zipformer/train.py
@@ -1227,6 +1227,8 @@ def run(rank, world_size, args):
             logging.info(f"Loaded MUSAN manifest from {musan_path}")
         else:
             cuts_musan = None
+    else:
+        cuts_musan = None
 
     train_dl = reazonspeech_corpus.train_dataloaders(
         train_cuts,