diff --git a/.github/workflows/cpplint_modified_files.yml b/.github/workflows/cpplint_modified_files.yml
index 6ca643266..1ad2664fd 100644
--- a/.github/workflows/cpplint_modified_files.yml
+++ b/.github/workflows/cpplint_modified_files.yml
@@ -17,6 +17,10 @@ jobs:
       - run: git remote -v
       - run: git branch
       #- run: git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/$GITHUB_REPOSITORY
+      - run: git diff --diff-filter=am --name-only master HEAD || true
+      - run: git diff --name-only origin/master HEAD || true
+      - run: git diff --name-only upstream/master HEAD || true
+      - run: git diff origin/master HEAD --name-only || true
       - run: git diff origin/master HEAD --name-only > git_diff.txt
       - name: cpplint_modified_files
         shell: python