diff --git a/scripts/buildkite/build_branch_pipeline.py b/scripts/buildkite/build_branch_pipeline.py
index 0813560..3e7c081 100755
--- a/scripts/buildkite/build_branch_pipeline.py
+++ b/scripts/buildkite/build_branch_pipeline.py
@@ -39,7 +39,7 @@ if __name__ == '__main__':
             f'git clone --depth 1 --branch {scripts_branch} https://github.com/google/llvm-premerge-checks.git '
             '${SRC}',
             'echo "llvm-premerge-checks commit"',
-            'git rev-parse HEAD',
+            'git --git-dir ${SRC}/.git rev-parse HEAD',
             'set +e',
             # Add link in review to the build.
             '${SRC}/scripts/phabtalk/add_url_artifact.py '
@@ -73,8 +73,8 @@ if __name__ == '__main__':
             'set SRC=%BUILDKITE_BUILD_PATH%/llvm-premerge-checks',
             'rm -rf %SRC%',
             f'git clone --depth 1 --branch {scripts_branch} https://github.com/google/llvm-premerge-checks.git %SRC%',
-            'echo "llvm-premerge-checks commit"',
-            'git rev-parse HEAD',
+            'echo llvm-premerge-checks commit:',
+            'git --git-dir %SRC%/.git rev-parse HEAD',
             'powershell -command "'
             f'%SRC%/scripts/premerge_checks.py --projects=\'{projects}\' --log-level={log_level} {filter_output}; '
             '\\$exit=\\$?;'
diff --git a/scripts/buildkite/build_master_pipeline.py b/scripts/buildkite/build_master_pipeline.py
index 808d2e8..ab28efc 100755
--- a/scripts/buildkite/build_master_pipeline.py
+++ b/scripts/buildkite/build_master_pipeline.py
@@ -23,6 +23,7 @@ if __name__ == '__main__':
     filter_output = '--filter-output' if os.getenv('ph_no_filter_output') is None else ''
     projects = os.getenv('ph_projects', 'clang;clang-tools-extra;libc;libcxx;libcxxabi;lld;libunwind;mlir;openmp;polly')
     log_level = os.getenv('ph_log_level', 'WARNING')
+    notify_emails = list(filter(None, os.getenv('ph_notify_emails', '').split(',')))
     steps = []
     linux_buld_step = {
         'label': ':linux: build and test linux',
@@ -38,7 +39,7 @@ if __name__ == '__main__':
             f'git clone --depth 1 --branch {scripts_branch} https://github.com/google/llvm-premerge-checks.git '
             '${SRC}',
             'echo "llvm-premerge-checks commit"',
-            'git rev-parse HEAD',
+            'git --git-dir ${SRC}/.git rev-parse HEAD',
             'set +e',
             f'${{SRC}}/scripts/premerge_checks.py --projects="{projects}" --log-level={log_level} {filter_output}',
             'EXIT_STATUS=\\$?',
@@ -68,8 +69,8 @@ if __name__ == '__main__':
             'set SRC=%BUILDKITE_BUILD_PATH%/llvm-premerge-checks',
             'rm -rf %SRC%',
             f'git clone --depth 1 --branch {scripts_branch} https://github.com/google/llvm-premerge-checks.git %SRC%',
-            'echo "llvm-premerge-checks commit"',
-            'git rev-parse HEAD',
+            'echo llvm-premerge-checks commit:',
+            'git --git-dir %SRC%/.git rev-parse HEAD',
             'powershell -command "'
             f'%SRC%/scripts/premerge_checks.py --projects=\'{projects}\' --log-level={log_level} {filter_output}; '
             '\\$exit=\\$?;'
@@ -95,4 +96,7 @@ if __name__ == '__main__':
         steps.append(linux_buld_step)
     if os.getenv('ph_skip_windows') is None:
         steps.append(windows_buld_step)
-    print(yaml.dump({'steps': steps}))
+    notify = []
+    for e in notify_emails:
+        notify.append({'email': e})
+    print(yaml.dump({'steps': steps, 'notify': notify}))