diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index bc365d3..ef5dc91 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -32,3 +32,9 @@ jobs:
     - name: build
       shell: pwsh
       run: make
+    - name: save binary
+      uses: actions/upload-artifact@v4
+      with:
+        name: cafeobj-sbcl-win64
+        path: cafeobj-*-sbcl-win32.zip
+