diff --git a/.github/workflows/box64.yml b/.github/workflows/box64.yml
index 186f712..e01826c 100644
--- a/.github/workflows/box64.yml
+++ b/.github/workflows/box64.yml
@@ -32,7 +32,7 @@ jobs:
       - uses: docker/build-push-action@v2
         with:
           context: ./box64
-          file: ./${{ matrix.oses }}/Dockerfile
+          file: ./${{ matrix.tag }}/Dockerfile
           platforms: linux/arm64
           push: true
           tags: |