diff --git a/examples/opencpop/svs1/README.md b/examples/opencpop/svs1/README.md
index dae6b8394..534a741fd 100644
--- a/examples/opencpop/svs1/README.md
+++ b/examples/opencpop/svs1/README.md
@@ -116,9 +116,9 @@ pwgan_opencpop_ckpt_1.4.0.zip
 ```
 `./local/synthesize.sh` calls `${BIN_DIR}/../synthesize.py`, which can synthesize waveform from `metadata.jsonl`.
 ```bash
-CUDA_VISIBLE_DEVICES=${gpus} ./local/synthesize.sh --stage 0 ${conf_path} ${train_output_path} ${ckpt_name}
+CUDA_VISIBLE_DEVICES=${gpus} ./local/synthesize.sh ${conf_path} ${train_output_path} ${ckpt_name}
 ```
-`--stage` controls the vocoder model during synthesis, which can be `0` , use `pwgan` model as vocoder.
+use `pwgan` model as vocoder.
 
 ```text
 usage: synthesize.py [-h]
diff --git a/examples/opencpop/svs1/README_cn.md b/examples/opencpop/svs1/README_cn.md
index de271bd4b..deb14e2f7 100644
--- a/examples/opencpop/svs1/README_cn.md
+++ b/examples/opencpop/svs1/README_cn.md
@@ -121,7 +121,7 @@ pwgan_opencpop_ckpt_1.4.0.zip
 ```bash
 CUDA_VISIBLE_DEVICES=${gpus} ./local/synthesize.sh --stage 0 ${conf_path} ${train_output_path} ${ckpt_name}
 ```
-`--stage` 用于选择合成时使用的声码器模型，取值为 `0` ，使用 `pwgan` 模型作为声码器。
+使用 `pwgan` 模型作为声码器。
 
 ```text
 usage: synthesize.py [-h]
diff --git a/examples/opencpop/svs1/run.sh b/examples/opencpop/svs1/run.sh
index c7d4771a0..6c6688b2f 100755
--- a/examples/opencpop/svs1/run.sh
+++ b/examples/opencpop/svs1/run.sh
@@ -28,7 +28,7 @@ fi
 
 if [ ${stage} -le 2 ] && [ ${stop_stage} -ge 2 ]; then
     # synthesize, vocoder is pwgan by default
-    CUDA_VISIBLE_DEVICES=${gpus} ./local/synthesize.sh --stage 0 ${conf_path} ${train_output_path} ${ckpt_name} || exit -1
+    CUDA_VISIBLE_DEVICES=${gpus} ./local/synthesize.sh ${conf_path} ${train_output_path} ${ckpt_name} || exit -1
 fi
 
 if [ ${stage} -le 3 ] && [ ${stop_stage} -ge 3 ]; then