diff --git a/.github/workflows/mega-linter.yml b/.github/workflows/mega-linter.yml
index facb6bae..d37a01b1 100644
--- a/.github/workflows/mega-linter.yml
+++ b/.github/workflows/mega-linter.yml
@@ -32,8 +32,8 @@ jobs:
         with:
           token: ${{ secrets.PAT || secrets.GITHUB_TOKEN }}
           fetch-depth: 0
-          # Try to get the merge commit.
-          ref: ${{ github.event.pull_request.merge_commit_sha }}
+          # Checkout the merge commit.
+          ref: refs/pull/${{ github.event.number }}/merge
 
       # MegaLinter
       - name: MegaLinter