diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index d320339..76898af 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -35,4 +35,4 @@ jobs:
         npm install --prefix testrunner
         node testrunner/app.js &
     - name: Add a test
-      run: sitespeed.io https://www.sitespeed.io -n 1 --api.hostname 127.0.0.1  --api.location default
\ No newline at end of file
+      run: sitespeed.io https://www.sitespeed.io -n 1 --api.hostname 127.0.0.1  --api.location default --headless
\ No newline at end of file