diff --git a/.github/workflows/pytest_cov.yml b/.github/workflows/pytest_cov.yml
index 1969d200..850152dd 100644
--- a/.github/workflows/pytest_cov.yml
+++ b/.github/workflows/pytest_cov.yml
@@ -32,7 +32,10 @@ jobs:
           pip install pytest-qt
           pip install codecov
       - name: Run Tests
-        run: xvfb-run pytest -v --cov=nw --timeout=60
+        run: |
+          export DISPLAY=':99.0'
+          Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
+          xvfb-run pytest -v --cov=nw --timeout=60
       - name: Upload to Codecov
         uses: codecov/codecov-action@v1