diff --git a/.github/workflows/windows-build.yml b/.github/workflows/windows-build.yml
index 1a12537..51e9767 100644
--- a/.github/workflows/windows-build.yml
+++ b/.github/workflows/windows-build.yml
@@ -9,7 +9,7 @@ on:
     types: [ published ]
 
 env:
-  artifacts: >
+  artifacts: |
     me7sum.exe
     ME7Check.exe
     README.md
@@ -35,8 +35,13 @@ jobs:
         path: ${{ env.artifacts }}
     - name: Upload windows artifact to release
       if: github.event_name == 'release' && github.event.action == 'published'
+      shell: pwsh
       run: |
-        7z a -tzip me7sum-${{ github.ref_name }}-win.zip ${{ env.artifacts }}
+        # convert newline separated string to array
+        $artifacts = "${{ env.artifacts }}"
+        $ARTIFACTS = $artifacts -split "`r?`n"
+        echo "@ARTIFACTS"
+        7z a -tzip me7sum-${{ github.ref_name }}-win.zip @ARTIFACTS
         gh release upload --clobber ${{ github.ref_name }} me7sum-${{ github.ref_name }}-win.zip
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}