diff --git a/egs/librispeech/ASR/zipformer/jit_pretrained_ctc.py b/egs/librispeech/ASR/zipformer/jit_pretrained_ctc.py
index 904d8cd76..59c268572 100755
--- a/egs/librispeech/ASR/zipformer/jit_pretrained_ctc.py
+++ b/egs/librispeech/ASR/zipformer/jit_pretrained_ctc.py
@@ -412,7 +412,7 @@ def main():
     s = "\n"
     for filename, hyp in zip(params.sound_files, hyps):
         words = " ".join(hyp)
-        words = words.replace("▁", " ").strip()
+        words = words.replace("▁", "").strip()
         s += f"{filename}:\n{words}\n\n"
     logging.info(s)
 
diff --git a/egs/librispeech/ASR/zipformer/pretrained_ctc.py b/egs/librispeech/ASR/zipformer/pretrained_ctc.py
index be239e9c3..3508978d8 100755
--- a/egs/librispeech/ASR/zipformer/pretrained_ctc.py
+++ b/egs/librispeech/ASR/zipformer/pretrained_ctc.py
@@ -274,7 +274,7 @@ def main():
     params.update(vars(args))
 
     token_table = k2.SymbolTable.from_file(params.tokens)
-    params.vocab_size = num_tokens(token_table)
+    params.vocab_size = num_tokens(token_table) + 1  # +1 for blank
     params.blank_id = token_table["<blk>"]
     assert params.blank_id == 0