diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 96694f93..4ac85668 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -670,23 +670,25 @@ jobs:
           echo "moved to $(pwd)"
           GAM_ARCHIVE="${GITHUB_WORKSPACE}/gam-${GAMVERSION}-windows-${GAM_ARCHIVE_ARCH}.zip"
           /c/Program\ Files/7-Zip/7z.exe a -tzip "$GAM_ARCHIVE" gam7 "-xr@${GITHUB_WORKSPACE}/.github/actions/package_exclusions.txt" -bb3
-          cd ../..
-          echo "moved to $(pwd)"
-          export MSI_FILENAME="${GITHUB_WORKSPACE}/gam-${GAMVERSION}-windows-${GAM_ARCHIVE_ARCH}.msi"
-          # auto-generate a lib.wxs based on the files PyInstaller created for the lib/ directory
-          /c/Program\ Files\ \(x86\)/WiX\ Toolset\ v3.14/bin/heat.exe dir "${gampath}/lib" -ke -srd -cg Lib -gg -dr lib -directoryid lib -out lib.wxs
-          $PYTHON tools/gen-wix-xml-filelist.py lib.wxs
-          echo "-- begin lib.wxs --"
-          cat lib.wxs
-          echo "-- end lib.wxs --"
-          /c/Program\ Files\ \(x86\)/WiX\ Toolset\ v3.14/bin/candle.exe -arch "${WIX_ARCH}" gam.wxs lib.wxs
-          /c/Program\ Files\ \(x86\)/WiX\ Toolset\ v3.14/bin/light.exe -ext /c/Program\ Files\ \(x86\)/WiX\ Toolset\ v3.14/bin/WixUIExtension.dll gam.wixobj lib.wixobj -b "${gampath}/lib" -o "$MSI_FILENAME" || true;
-          rm -v -f *.wixpdb
-          rm -v -f *.wixobj
-          echo "MSI_FILENAME=${MSI_FILENAME}" >> $GITHUB_ENV
+          if [ "RUNNER_ARCH" == "X64" ]; then
+            cd ../..
+            echo "moved to $(pwd)"
+            export MSI_FILENAME="${GITHUB_WORKSPACE}/gam-${GAMVERSION}-windows-${GAM_ARCHIVE_ARCH}.msi"
+            # auto-generate a lib.wxs based on the files PyInstaller created for the lib/ directory
+            /c/Program\ Files\ \(x86\)/WiX\ Toolset\ v3.14/bin/heat.exe dir "${gampath}/lib" -ke -srd -cg Lib -gg -dr lib -directoryid lib -out lib.wxs
+            $PYTHON tools/gen-wix-xml-filelist.py lib.wxs
+            echo "-- begin lib.wxs --"
+            cat lib.wxs
+            echo "-- end lib.wxs --"
+            /c/Program\ Files\ \(x86\)/WiX\ Toolset\ v3.14/bin/candle.exe -arch "${WIX_ARCH}" gam.wxs lib.wxs
+            /c/Program\ Files\ \(x86\)/WiX\ Toolset\ v3.14/bin/light.exe -ext /c/Program\ Files\ \(x86\)/WiX\ Toolset\ v3.14/bin/WixUIExtension.dll gam.wixobj lib.wixobj -b "${gampath}/lib" -o "$MSI_FILENAME" || true;
+            rm -v -f *.wixpdb
+            rm -v -f *.wixobj
+            echo "MSI_FILENAME=${MSI_FILENAME}" >> $GITHUB_ENV
+          fi
 
       - name: Upload gam MSI Windows for signing
-        if: runner.os == 'Windows' && matrix.goal != 'test'
+        if: runner.os == 'Windows' && runner.arch == 'X64' && matrix.goal != 'test'
         run: |
           export folder_number=$(date +%s)
           export folder_id=$($gam user gam-win-signer@pdl.jaylee.us add drivefile drivefilename "UPLOADING_FOR_SIGN ${folder_number}" parentid "1Xz3hYq4Mfa_r6D8EcBZHLDtHDFurYSvp" mimetype gfolder returnidonly)