diff --git a/egs/aishell/ASR/zipformer_bbpe/jit_pretrained.py b/egs/aishell/ASR/zipformer_bbpe/jit_pretrained.py
index 428f5b0924..cd16284f72 100755
--- a/egs/aishell/ASR/zipformer_bbpe/jit_pretrained.py
+++ b/egs/aishell/ASR/zipformer_bbpe/jit_pretrained.py
@@ -66,6 +66,7 @@ def get_parser():
     parser.add_argument(
         "--bpe-model",
         type=str,
+        required=True,
         help="""Path to the bbpe.model.""",
     )
 
diff --git a/egs/aishell/ASR/zipformer_bbpe/pretrained.py b/egs/aishell/ASR/zipformer_bbpe/pretrained.py
index 29041efaa6..ce4150ccee 100755
--- a/egs/aishell/ASR/zipformer_bbpe/pretrained.py
+++ b/egs/aishell/ASR/zipformer_bbpe/pretrained.py
@@ -150,6 +150,7 @@ def get_parser():
     parser.add_argument(
         "--bpe-model",
         type=str,
+        required=True,
         help="""Path to the bbpe.model.""",
     )