diff --git a/.github/workflows/containers.yml b/.github/workflows/containers.yml
index 5e2efa6..e0bc962 100644
--- a/.github/workflows/containers.yml
+++ b/.github/workflows/containers.yml
@@ -471,11 +471,12 @@ jobs:
         id: build_args
         run: |
           echo 'args<<EOF
-            DOWNLOAD_FILE=openwrt-.*-rootfs.tar.gz
+            TARGET=${{ matrix.target }}
+            TARGET_TAG="${TARGET//\//-}"
+            DOWNLOAD_FILE=openwrt-${TARGET_TAG}-rootfs.tar.gz
             WORKDIR=/
             USER=root
             VERSION_PATH=${{ needs.generate_matrix.outputs.version_path }}
-            TARGET=${{ matrix.target }}
             BASE_IMAGE=scratch
             CMD=ash
             FILE_HOST=${{ needs.generate_matrix.outputs.file_host }}