diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 25b387bb..526d508d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -65,3 +65,9 @@ jobs:
         if: always()
         run: |
           util/check_local_modifications.sh
+      - name: Setup tmate session
+        if: failure()
+        timeout-minutes: 40
+        uses: mxschmitt/action-tmate@v3
+        with:
+          limit-access-to-actor: true