diff --git a/.buildkite/pull-requests.org-wide.json b/.buildkite/pull-requests.org-wide.json
index 58f2975b9bc4..677200631798 100644
--- a/.buildkite/pull-requests.org-wide.json
+++ b/.buildkite/pull-requests.org-wide.json
@@ -12,8 +12,8 @@
       "allowed_list": ["github-actions[bot]", "renovate[bot]", "mergify[bot]", "dependabot[bot]"],
       "build_on_commit": true,
       "build_on_comment": true,
-      "trigger_comment_regex": "run docs-build ?(?<rebuild_opt>rebuild)? ?(?<warn_opt>warnlinkcheck)? ?(?<skip_opt>skiplinkcheck)?",
-      "always_trigger_comment_regex": "buildkite test this ?(?<rebuild_opt>rebuild)? ?(?<warn_opt>warnlinkcheck)? ?(?<skip_opt>skiplinkcheck)?",
+      "trigger_comment_regex": "run docs-build\\s*?(?<rebuild_opt>rebuild)? ?(?<warn_opt>warnlinkcheck)? ?(?<skip_opt>skiplinkcheck)?",
+      "always_trigger_comment_regex": "buildkite test this\\s*?(?<rebuild_opt>rebuild)? ?(?<warn_opt>warnlinkcheck)? ?(?<skip_opt>skiplinkcheck)?",
       "skip_ci_labels": [
         "skip docs-build"
       ],