diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d9b521d5..10b9cbf4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,6 +34,25 @@ jobs:
     - uses: actions/checkout@v4
     - name: windows build with c68k
       shell: msys2 {0}
-      run: |
-        make C68K=1 clean
-        make C68K=1
+      run: make -j8 C68K=1
+
+  windows-musashi:
+    runs-on: windows-latest
+    steps:
+    - uses: msys2/setup-msys2@v2
+      with:
+        update: true
+        install: >-
+          base-devel
+          gcc
+          git
+          make
+          zip
+          mingw-w64-x86_64-toolchain
+          mingw-w64-x86_64-ntldd
+          mingw-w64-x86_64-zlib
+          mingw-w64-x86_64-pkg-config
+    - uses: actions/checkout@v4
+    - name: windows build with c68k
+      shell: msys2 {0}
+      run: make -j8 C68K=0