diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 0e0856b6d..0bdd97154 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -27,7 +27,7 @@ jobs:
     - name: Set cache key
       id: key
       run: |
-        echo "{key}={$(date +'%Y-%m-%d')}" >> $GITHUB_ENV
+        echo "key=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
 
     - uses: actions/checkout@v3