diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index df50e74..894e2ad 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -88,7 +88,7 @@ jobs:
         if: matrix.os == 'windows-2019'
         run: |
           echo "VERSION=$(python Movie_Data_Capture.py --version)" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
-          echo "ARCH=%PROCESSOR_ARCHITECTURE%" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+          echo "ARCH=$env:PROCESSOR_ARCHITECTURE" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
 
       - name: Upload build artifact
         uses: actions/upload-artifact@v1