diff --git a/buildkite.yaml b/buildkite.yaml
index c87865a..5c8340c 100644
--- a/buildkite.yaml
+++ b/buildkite.yaml
@@ -16,9 +16,14 @@ steps:
   - label: coverage
     if: build.branch == "main"
     command:
-      - echo +++
+      - echo +++ Fetch
+      - git fetch https://github.com/kamadorueda/alejandra "${BUILDKITE_COMMIT}:main"
+      - git checkout main
+      - git branch
+      - echo --- Load environment
       - direnv allow
       - eval "$(direnv export bash)"
+      - echo +++ Run tests
       - cargo tarpaulin --coveralls "${COVERALLS_REPO_TOKEN}"
 
   - label: diff