diff --git a/egs/librispeech/ASR/pruned_transducer_stateless2/train.py b/egs/librispeech/ASR/pruned_transducer_stateless2/train.py
index 9f73c8fbc..83558a72b 100755
--- a/egs/librispeech/ASR/pruned_transducer_stateless2/train.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless2/train.py
@@ -160,7 +160,7 @@ def get_parser():
 
     parser.add_argument(
         "--num-lr-decays",
-        type=float,
+        type=int,
         default=4,
         help="The total number of times we decay (halve) the learning rate"
     )