diff --git a/egs/librispeech/ASR/lstm_transducer_stateless/export.py b/egs/librispeech/ASR/lstm_transducer_stateless/export.py
index 4360ea60e..c007220d5 100755
--- a/egs/librispeech/ASR/lstm_transducer_stateless/export.py
+++ b/egs/librispeech/ASR/lstm_transducer_stateless/export.py
@@ -269,7 +269,7 @@ def main():
     # Load tokens.txt here
     token_table = k2.SymbolTable.from_file(params.tokens)
 
-    # Load id of the <blk> token and the vocab size, <blk> is 
+    # Load id of the <blk> token and the vocab size, <blk> is
     # defined in local/train_bpe_model.py
     params.blank_id = token_table["<blk>"]
     params.vocab_size = num_tokens(token_table) + 1  # +1 for <blk>
diff --git a/egs/librispeech/ASR/lstm_transducer_stateless2/export-for-ncnn.py b/egs/librispeech/ASR/lstm_transducer_stateless2/export-for-ncnn.py
index 0b579c3d1..2b8c92208 100755
--- a/egs/librispeech/ASR/lstm_transducer_stateless2/export-for-ncnn.py
+++ b/egs/librispeech/ASR/lstm_transducer_stateless2/export-for-ncnn.py
@@ -224,7 +224,7 @@ def main():
     # Load tokens.txt here
     token_table = k2.SymbolTable.from_file(params.tokens)
 
-    # Load id of the <blk> token and the vocab size, <blk> is 
+    # Load id of the <blk> token and the vocab size, <blk> is
     # defined in local/train_bpe_model.py
     params.blank_id = token_table["<blk>"]
     params.vocab_size = num_tokens(token_table) + 1  # +1 for <blk>
diff --git a/egs/librispeech/ASR/lstm_transducer_stateless2/export-onnx.py b/egs/librispeech/ASR/lstm_transducer_stateless2/export-onnx.py
index aa3808082..0e66ebfe6 100755
--- a/egs/librispeech/ASR/lstm_transducer_stateless2/export-onnx.py
+++ b/egs/librispeech/ASR/lstm_transducer_stateless2/export-onnx.py
@@ -440,7 +440,7 @@ def main():
     # Load tokens.txt here
     token_table = k2.SymbolTable.from_file(params.tokens)
 
-    # Load id of the <blk> token and the vocab size, <blk> is 
+    # Load id of the <blk> token and the vocab size, <blk> is
     # defined in local/train_bpe_model.py
     params.blank_id = token_table["<blk>"]
     params.vocab_size = num_tokens(token_table) + 1  # +1 for <blk>
diff --git a/egs/librispeech/ASR/lstm_transducer_stateless2/export.py b/egs/librispeech/ASR/lstm_transducer_stateless2/export.py
index 3c10ccc24..5712da25e 100755
--- a/egs/librispeech/ASR/lstm_transducer_stateless2/export.py
+++ b/egs/librispeech/ASR/lstm_transducer_stateless2/export.py
@@ -270,7 +270,7 @@ def main():
     # Load tokens.txt here
     token_table = k2.SymbolTable.from_file(params.tokens)
 
-    # Load id of the <blk> token and the vocab size, <blk> is 
+    # Load id of the <blk> token and the vocab size, <blk> is
     # defined in local/train_bpe_model.py
     params.blank_id = token_table["<blk>"]
     params.vocab_size = num_tokens(token_table) + 1  # +1 for <blk>
diff --git a/egs/librispeech/ASR/lstm_transducer_stateless3/export.py b/egs/librispeech/ASR/lstm_transducer_stateless3/export.py
index dc2a7ceab..21eaa049b 100755
--- a/egs/librispeech/ASR/lstm_transducer_stateless3/export.py
+++ b/egs/librispeech/ASR/lstm_transducer_stateless3/export.py
@@ -269,7 +269,7 @@ def main():
     # Load tokens.txt here
     token_table = k2.SymbolTable.from_file(params.tokens)
 
-    # Load id of the <blk> token and the vocab size, <blk> is 
+    # Load id of the <blk> token and the vocab size, <blk> is
     # defined in local/train_bpe_model.py
     params.blank_id = token_table["<blk>"]
     params.vocab_size = num_tokens(token_table) + 1  # +1 for <blk>