diff --git a/.github/workflows/preview-label.yaml b/.github/workflows/preview-label.yaml
index e087abcffc..3ab9fd267f 100644
--- a/.github/workflows/preview-label.yaml
+++ b/.github/workflows/preview-label.yaml
@@ -35,6 +35,13 @@ jobs:
             })
 
       - uses: mshick/add-pr-comment@b8f338c590a895d50bcbfa6c5859251edc8952fc # v2.8.2
+        if: ${{ github.event.pull_request.head.repo.fork }}
+        with:
+          message-id: 'preview-status'
+          message: 'PRs from forks cannot have preview environments.'
+
+      - uses: mshick/add-pr-comment@b8f338c590a895d50bcbfa6c5859251edc8952fc # v2.8.2
+        if: ${{ !github.event.pull_request.head.repo.fork }}
         with:
           message-id: 'preview-status'
           message: 'Preview environment has been removed.'