diff --git a/test_tipc/configs/rec_r50_fpn_vd_none_srn/train_infer_python.txt b/test_tipc/configs/rec_r50_fpn_vd_none_srn/train_infer_python.txt
index 187c1cc13a72c2d0ba8f7b57c2b9f5b7ba388d79..4877512b689ec87b7b2cd0258a2fac706968322b 100644
--- a/test_tipc/configs/rec_r50_fpn_vd_none_srn/train_infer_python.txt
+++ b/test_tipc/configs/rec_r50_fpn_vd_none_srn/train_infer_python.txt
@@ -37,7 +37,7 @@ export2:null
 train_model:./inference/rec_r50_vd_srn_train/best_accuracy
 infer_export:tools/export_model.py -c test_tipc/configs/rec_r50_fpn_vd_none_srn/rec_r50_fpn_srn.yml -o
 infer_quant:False
-inference:tools/infer/predict_rec.py --rec_char_dict_path=./ppocr/utils/ic15_dict.txt --rec_image_shape="1,64,256" --rec_algorithm="SRN" --use_space_char=False
+inference:tools/infer/predict_rec.py --rec_char_dict_path=./ppocr/utils/ic15_dict.txt --rec_image_shape="1,64,256" --rec_algorithm="SRN" --use_space_char=False --min_subgraph_size=3
 --use_gpu:True|False
 --enable_mkldnn:True|False
 --cpu_threads:1|6