diff --git a/.github/workflows/build-wheels-aarch64-rknn.yaml b/.github/workflows/build-wheels-aarch64-rknn.yaml
index 3b8a6909..d04cb504 100644
--- a/.github/workflows/build-wheels-aarch64-rknn.yaml
+++ b/.github/workflows/build-wheels-aarch64-rknn.yaml
@@ -63,21 +63,18 @@ jobs:
 
           ls -lh
 
-          git clone --depth 1 --branch v1.2.12 https://github.com/alsa-project/alsa-lib
-          pushd alsa-lib
-          ./gitcompile
-          popd
+          sudo apt-get update -y
+          sudo apt-get install -y alsa-utils libasound2-dev
 
           export SHERPA_ONNX_RKNN_TOOLKIT2_PATH=$PWD/rknn-toolkit2
           export SHERPA_ONNX_RKNN_TOOLKIT2_LIB_DIR=$SHERPA_ONNX_RKNN_TOOLKIT2_PATH/rknpu2/runtime/Linux/librknn_api/aarch64
           export CPLUS_INCLUDE_PATH=$SHERPA_ONNX_RKNN_TOOLKIT2_PATH/rknpu2/runtime/Linux/librknn_api/include:$CPLUS_INCLUDE_PATH
-          export CPLUS_INCLUDE_PATH=$PWD/alsa-lib/include:$CPLUS_INCLUDE_PATH
-          export SHERPA_ONNX_ALSA_LIB_DIR=$PWD/alsa-lib/src/.libs
 
-          export SHERPA_ONNX_CMAKE_ARGS="-DSHERPA_ONNX_ENABLE_RKNN=ON -DSHERPA_ONNX_ENABLE_ALSA=1"
+          export SHERPA_ONNX_ENABLE_ALSA=1
+
+          export SHERPA_ONNX_CMAKE_ARGS="-DSHERPA_ONNX_ENABLE_RKNN=ON"
           python3 setup.py bdist_wheel
 
-
       - name: Display results
         shell: bash
         run: |
diff --git a/sherpa-onnx/csrc/sherpa-onnx-offline-denoiser.cc b/sherpa-onnx/csrc/sherpa-onnx-offline-denoiser.cc
index b8ce169f..61d6afd2 100644
--- a/sherpa-onnx/csrc/sherpa-onnx-offline-denoiser.cc
+++ b/sherpa-onnx/csrc/sherpa-onnx-offline-denoiser.cc
@@ -24,8 +24,8 @@ Usage:
 wget https://github.com/k2-fsa/sherpa-onnx/releases/download/speech-enhancement-models/gtcrn_simple.onnx
 ./bin/sherpa-onnx-offline-denoiser \
   --speech-denoiser-gtcrn-model=gtcrn_simple.onnx \
-  --input-wav input.wav \
-  --output-wav output_16k.wav
+  --input-wav=input.wav \
+  --output-wav=output_16k.wav
 )usage";
 
   sherpa_onnx::ParseOptions po(kUsageMessage);