diff --git a/.github/workflows/container.yml b/.github/workflows/container.yml
index ef92a0662..22d1c0266 100644
--- a/.github/workflows/container.yml
+++ b/.github/workflows/container.yml
@@ -76,7 +76,7 @@ jobs:
         uses: actions/cache@v4
         with:
           # yamllint disable-line rule:line-length
-          key: "container-mounts-${{ matrix.arch }}-${{ hashFiles('./container/Dockerfile ./container/legacy/Dockerfile') }}"
+          key: "container-mounts-${{ matrix.arch }}-${{ hashFiles('./container/Dockerfile', './container/legacy/Dockerfile') }}"
           restore-keys: "container-mounts-${{ matrix.arch }}-"
           path: |
             /var/tmp/buildah-cache/