diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -864,7 +864,7 @@ jobs:
       env:
         AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
         AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
-        AWS_REGION: ${{ secrets.AWS_REGION }}
+        AWS_DEFAULT_REGION: ${{ secrets.AWS_REGION }}
 
     - name: Trigger 'New OpenTTD release'
       uses: peter-evans/repository-dispatch@v1