diff --git a/.github/workflows/pull-request-approved.yml b/.github/workflows/pull-request-approved.yml
index d339f65b9..ba378d3ab 100644
--- a/.github/workflows/pull-request-approved.yml
+++ b/.github/workflows/pull-request-approved.yml
@@ -24,7 +24,7 @@ jobs:
           chmod +x ./.github/workflows/scripts/get-xetabase-branch.sh
           echo "github.event.pull_request.base.ref: ${{ github.event.pull_request.base.ref }}"
           echo "github.event.pull_request.head.ref: ${{ github.event.pull_request.head.ref }}"
-          xetabase_branch=$(./.github/workflows/scripts/get-xetabase-branch.sh ${{ github.event.pull_request.head.ref }})
+          xetabase_branch=$(./.github/workflows/scripts/get-xetabase-branch.sh ${{ github.event.pull_request.base.ref }})
           echo "__Xetabase ref:__ \"${xetabase_branch}\"" | tee -a ${GITHUB_STEP_SUMMARY}
           echo "xetabase_branch=${xetabase_branch}" >> $GITHUB_OUTPUT
         env: