diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index ad38938..f49bf46 100644
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -29,4 +29,4 @@ jobs:
       - name: Run and test redirect
         run: |
           ./tiny-ssl-reverse-proxy -key key.pem -cert crt.pem &
-          curl -v https://localhost:443 2>&1 | grep "self signed certificate"
+          curl --cacert crt.pem https://localhost:443 | grep "Backend Unavailable"