diff --git a/egs/librispeech/ASR/pruned_transducer_stateless7/train.py b/egs/librispeech/ASR/pruned_transducer_stateless7/train.py
index 8cb438b25..b801beccf 100755
--- a/egs/librispeech/ASR/pruned_transducer_stateless7/train.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless7/train.py
@@ -106,7 +106,7 @@ def add_model_arguments(parser: argparse.ArgumentParser):
     parser.add_argument(
         "--num-encoder-layers",
         type=str,
-        default="3,4,4,4,4,4",
+        default="4,4,4,4,4,4",
         help="Number of zipformer encoder layers per stack, comma separated.",
     )