diff --git a/.github/workflows/rustc-pull.yml b/.github/workflows/rustc-pull.yml
index ee0c498878..d2feb1add6 100644
--- a/.github/workflows/rustc-pull.yml
+++ b/.github/workflows/rustc-pull.yml
@@ -13,6 +13,7 @@ jobs:
     uses: rust-lang/josh-sync/.github/workflows/rustc-pull.yml@main
     with:
       github-app-id: ${{ vars.APP_CLIENT_ID }}
+      pr-author: "workflows-stdarch[bot]"
       # https://rust-lang.zulipchat.com/#narrow/channel/208962-t-libs.2Fstdarch/topic/Subtree.20sync.20automation/with/528461782
       zulip-stream-id: 208962
       zulip-bot-email:  "stdarch-ci-bot@rust-lang.zulipchat.com"