diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 577b454..32f6ef0 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -75,7 +75,7 @@ jobs:
           box install
       - name: Start ${{ matrix.cfengine }} Server
         run: |
-          box server start cfengine=server-${{ matrix.cfengine }}.json --noSaveSettings --debug
+          box server start serverConfigFile="server-${{ matrix.cfengine }}.json" --noSaveSettings --debug
           # Install Adobe 2021 cfpm modules
           if [[ "${{ matrix.cfengine }}" == "adobe@2021" ]] ; then
             box run-script install:2021