diff --git a/.gitea/workflows/test.yaml b/.gitea/workflows/test.yaml
index 3ef27da..79bb055 100644
--- a/.gitea/workflows/test.yaml
+++ b/.gitea/workflows/test.yaml
@@ -19,5 +19,5 @@ jobs:
       - name: Restore NuGet packages
         run: nuget restore Elwig/Elwig.csproj
       - name: Build Installer
-        shell: cmd /U /C {0}
+        shell: cmd /U /C call {0}
         run: $(& msbuild -verbosity:quiet Installer/Installer.wixproj -property:Configuration=${{ matrix.configuration }} -property:Platform=${{ matrix.platform }}; $a=$lastexitcode) | findstr x*; exit $a