diff --git a/.github/workflows/macos.yaml b/.github/workflows/macos.yaml
index 67a1ee5c7..e00b84534 100644
--- a/.github/workflows/macos.yaml
+++ b/.github/workflows/macos.yaml
@@ -138,6 +138,8 @@ jobs:
         # FIXME: does not work because xvfb is not available.
         # If it turns out necessary, install XQuartz: brew install XQuartz
         #run: sudo Xvfb :99 -ac -screen 0 1024x768x8 &
+      - name: debug with tmate
+        uses: mxschmitt/action-tmate@v3
       - name: Setup test config
         run: |
           until docker exec cozy-desktop-stack /cozy-desktop/test/setup.sh