diff --git a/.github/workflows/build-docs.yml b/.github/workflows/build-docs.yml
index a80be421b..e7d2ab2c9 100644
--- a/.github/workflows/build-docs.yml
+++ b/.github/workflows/build-docs.yml
@@ -14,7 +14,9 @@ jobs:
     steps:
       - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
         with:
-          ref: ${{ github.head_ref }}
+          fetch-depth: 0
+          ref: ${{github.event.pull_request.head.ref}}
+          repository: ${{github.event.pull_request.head.repo.full_name}}
       - name: Install NPM dependencies
         run: npm ci
       - name: Build API docs