diff --git a/tests/ocr_det_params.txt b/tests/ocr_det_params.txt
index bb1556fb..733de0ff 100644
--- a/tests/ocr_det_params.txt
+++ b/tests/ocr_det_params.txt
@@ -40,7 +40,7 @@ infer_quant:False
 inference:tools/infer/predict_det.py
 --use_gpu:True|False
 --enable_mkldnn:True|False
---cpu_threads:1|6
+--cpu_threads:6
 --rec_batch_num:1
 --use_tensorrt:False|True
 --precision:fp32|fp16|int8