diff --git a/egs/librispeech/ASR/pruned_transducer_stateless7/train.py b/egs/librispeech/ASR/pruned_transducer_stateless7/train.py
index 8cf451d3e..45513ef5c 100755
--- a/egs/librispeech/ASR/pruned_transducer_stateless7/train.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless7/train.py
@@ -164,7 +164,7 @@ def add_model_arguments(parser: argparse.ArgumentParser):
     parser.add_argument(
         "--pos-dim",
         type=int,
-        default="96",
+        default="48",
         help="Positional-encoding embedding dimension"
     )