diff --git a/.github/workflows/backend-ci.yml b/.github/workflows/backend-ci.yml
index 2bac7259a9..8361b273b5 100644
--- a/.github/workflows/backend-ci.yml
+++ b/.github/workflows/backend-ci.yml
@@ -25,6 +25,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
+      - name: Check Docker Compose simple mode environment
+        run: /bin/sh deploy/tests/docker-compose-simple-mode-env-test.sh
       - uses: actions/setup-go@v6
         with:
           go-version-file: backend/go.mod