diff --git a/speechx/examples/ds2_ol/onnx/README.md b/speechx/examples/ds2_ol/onnx/README.md
index d5a6cbb5c..b98b74b6f 100644
--- a/speechx/examples/ds2_ol/onnx/README.md
+++ b/speechx/examples/ds2_ol/onnx/README.md
@@ -34,7 +34,7 @@ bash run.sh --stage 0 --stop_stage 5
 3. optimize onnx model
 4. check paddleinference and optimized onnxruntime output equal.
 5. quantize onnx model
-4. check paddleinference and optimized onnxruntime output equal.
+6. check paddleinference and optimized onnxruntime output equal.
 
 For more details please see `run.sh`.