diff --git a/egs/aishell/ASR/conformer_mmi/decode.py b/egs/aishell/ASR/conformer_mmi/decode.py
index a197a455c..8a2daa93e 100755
--- a/egs/aishell/ASR/conformer_mmi/decode.py
+++ b/egs/aishell/ASR/conformer_mmi/decode.py
@@ -448,7 +448,7 @@ def save_results(
                 f"{test_set_name}-{key}",
                 results_char,
                 enable_log=enable_log,
-                cer=True,
+                compute_CER=True,
             )
             test_set_wers[key] = wer