diff --git a/.github/workflows/build-libs.yml b/.github/workflows/build-libs.yml
index 65dafb0..457e9b2 100644
--- a/.github/workflows/build-libs.yml
+++ b/.github/workflows/build-libs.yml
@@ -43,10 +43,9 @@ jobs:
     runs-on: windows-2022
     strategy:
       matrix:
-        use-asio: ["OFF", "ON"]
+        asio-suffix: ["", "-asio"]
     # TODO: matrix with x64 and Win32
     env:
-      ASIO_SUFFIX: "${{ matrix.use-asio == 'ON' && '-asio' || '' }}"
       # Reproducible build by avoiding time stamp
       LDFLAGS: "/Brepro"
     steps:
@@ -58,27 +57,27 @@ jobs:
           path: portaudio
       # The next portaudio release will have an auto-download feature:
       - name: download and extract ASIO SDK
-        if: ${{ matrix.use-asio == 'ON' }}
+        if: matrix.asio-suffix
         run: |
           curl -L -o asiosdk.zip https://www.steinberg.net/asiosdk
           7z x asiosdk.zip
       - name: cmake configure
         run: |
-          cmake -S portaudio -B build -A x64 -D PA_USE_ASIO=${{ matrix.use-asio }}
+          cmake -S portaudio -B build -A x64 -D PA_USE_ASIO=${{ matrix.asio-suffix && 'ON' || 'OFF' }}
       - name: cmake build
         run: |
           cmake --build build --config Release
       - name: rename DLL
         run: |
-          mv build/Release/portaudio_x64.dll libportaudio64bit$ASIO_SUFFIX.dll
+          mv build/Release/portaudio_x64.dll libportaudio64bit${{ matrix.asio-suffix }}.dll
       - name: show some information about DLL
         run: |
-          ldd libportaudio64bit$ASIO_SUFFIX.dll
+          ldd libportaudio64bit${{ matrix.asio-suffix }}.dll
       - name: upload DLL
         uses: actions/upload-artifact@v3
         with:
-          name: windows-x64-dll$ASIO_SUFFIX
-          path: libportaudio64bit$ASIO_SUFFIX.dll
+          name: windows-x64-dll${{ matrix.asio-suffix }}
+          path: libportaudio64bit${{ matrix.asio-suffix }}.dll
 
   push:
     runs-on: ubuntu-latest