diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3ca7d9f89..d6ba5b6bf 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -38,10 +38,9 @@ jobs:
         uses: actions/cache@v3.0.2
         with:
           path: ~/.vagrant.d/boxes
-          key: |-
-            ${{ runner.os }}-
-            vagrant-
-            ${{ hashFiles('ansible/molecule/default/molecule.yml') }}
+          key: "${{ runner.os }}-\
+            vagrant-\
+            ${{ hashFiles('ansible/molecule/default/molecule.yml') }}"
           restore-keys: ${{ runner.os }}-vagrant-
 
       - name: Test