diff --git a/.github/workflows/windows-cpp.yml b/.github/workflows/windows-cpp.yml
index 9b7a5f64761..7007995dd09 100644
--- a/.github/workflows/windows-cpp.yml
+++ b/.github/workflows/windows-cpp.yml
@@ -71,6 +71,7 @@ jobs:
           -DBUILD_SAMPLES=OFF 
           -DCMAKE_INSTALL_PREFIX="install"
           -DBUILD_FLATZINC=OFF
+          -DUSE_SIRIUS=${{ matrix.sirius }}
 
       - name: Build
         run: >