diff --git a/egs/librispeech/ASR/conformer_ctc2/.decode.py.swp b/egs/librispeech/ASR/conformer_ctc2/.decode.py.swp
index bb3ad6b83..57bc29286 100644
Binary files a/egs/librispeech/ASR/conformer_ctc2/.decode.py.swp and b/egs/librispeech/ASR/conformer_ctc2/.decode.py.swp differ
diff --git a/icefall/.decode.py.swp b/icefall/.decode.py.swp
index e5c7eac10..402434e87 100644
Binary files a/icefall/.decode.py.swp and b/icefall/.decode.py.swp differ
diff --git a/icefall/decode.py b/icefall/decode.py
index 8d24b734f..68b74a8f1 100644
--- a/icefall/decode.py
+++ b/icefall/decode.py
@@ -22,6 +22,7 @@ import torch
 
 from icefall.utils import add_eos, add_sos, get_texts
 
+'''
 DEFAULT_LM_SCALE = [
     0.01,
     0.05,
@@ -48,7 +49,8 @@ DEFAULT_LM_SCALE = [
     4.0,
     5.0,
 ]
-
+'''
+DEFAULT_LM_SCALE = [0.]
 
 def _intersect_device(
     a_fsas: k2.Fsa,