diff --git a/.github/workflows/pr-pub.yml b/.github/workflows/pr-pub.yml
index 8c839eb..c8f204d 100644
--- a/.github/workflows/pr-pub.yml
+++ b/.github/workflows/pr-pub.yml
@@ -43,7 +43,7 @@ jobs:
         run: quarto render
       
       - name: Deploy to GitHub Pages
-        if: github.event.action != 'closed'
+        if: github.event.action != 'closed' && github.event.pull_request.head.repo.full_name == github.repository
         uses: peaceiris/actions-gh-pages@v3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/tutorials/hdf5_formatting.ipynb b/tutorials/hdf5_formatting.ipynb
index 95e0939..95c53e5 100755
--- a/tutorials/hdf5_formatting.ipynb
+++ b/tutorials/hdf5_formatting.ipynb
@@ -71,7 +71,7 @@
    "id": "e70aa9a5-58dc-44e7-a600-a1f9db2027d5",
    "metadata": {},
    "source": [
-    "Create some dimension variables.  The dimension scales need to be in the group so that they can found by `xarray`."
+    "Create some dimension variables.  The dimension scales need to be in the group so that they can found by `xarray`. "
    ]
   },
   {