diff --git a/.github/workflows/build-majestic.yml b/.github/workflows/build-majestic.yml
index 9e2cb838d..4efd9892c 100644
--- a/.github/workflows/build-majestic.yml
+++ b/.github/workflows/build-majestic.yml
@@ -222,3 +222,17 @@ jobs:
       working-directory: ./src/runtime/javascript
       run: |
         npm run test
+
+# ----------------------------------------------------------------------------
+
+  windows-runtime:
+    name: Runtime (Windows)
+    runs-on: windows-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    
+    - name: Setup MSYS2
+      uses: msys2/setup-msys2@v2
+      with:
+        msystem: MINGW64