diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7b2e65ae..3a24ad76 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -192,9 +192,7 @@ jobs:
           echo "UPX_CMD=$(php src/globals/test-extensions.php upx)" >> $GITHUB_ENV
 
       - name: "Run Build Tests (download)"
-        run: |
-          bin/spc $(php src/globals/test-extensions.php download_cmd ${{ matrix.os }} ${{ matrix.php }})
+        run: php src/globals/test-extensions.php download_cmd ${{ matrix.os }} ${{ matrix.php }}
 
       - name: "Run Build Tests (build)"
-        run: |
-          bin/spc $(php src/globals/test-extensions.php build_cmd ${{ matrix.os }} ${{ matrix.php }})
+        run: php src/globals/test-extensions.php build_cmd ${{ matrix.os }} ${{ matrix.php }}
diff --git a/src/globals/test-extensions.php b/src/globals/test-extensions.php
index fa377325..4e54a328 100644
--- a/src/globals/test-extensions.php
+++ b/src/globals/test-extensions.php
@@ -143,3 +143,11 @@ echo match ($argv[1]) {
     'build_cmd' => $build_cmd,
     default => '',
 };
+
+if ($argv[1] === 'download_cmd' || $argv[1] === 'build_cmd') {
+    if (str_starts_with($argv[2], 'windows-')) {
+        passthru('powershell.exe -file .\bin\spc.ps1 ' . $down_cmd);
+    } else {
+        passthru('./bin/spc ' . $down_cmd);
+    }
+}
\ No newline at end of file