diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 45c1cc4..ecc0ea1 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -33,4 +33,4 @@ jobs:
       # TODO: lint range of commits, not only the latest pushed
       - name: Gitlint
         # yamllint disable-line rule:line-length
-        run: gitlint --debug --commits "${{ github.event.after }}..${{ github.sha }}"
+        run: gitlint --debug --commits "${{ github.base_ref }}..${{ github.sha }}"