diff --git a/.github/workflows/assistant-to-the-branch-manager.yml b/.github/workflows/assistant-to-the-branch-manager.yml
index d207ae50972d..76e83af4fb38 100644
--- a/.github/workflows/assistant-to-the-branch-manager.yml
+++ b/.github/workflows/assistant-to-the-branch-manager.yml
@@ -13,7 +13,7 @@ permissions:
 jobs:
   assistant_to_the_branch_manager:
     runs-on: ubuntu-latest
-    if: github.event.repository.fork == false
+    if: github.event.pull_request.head.repo.fork == false
     steps:
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with: