diff --git a/scripts/__init__.py b/scripts/__init__.py
new file mode 100644
index 0000000000000..e69de29bb2d1d
diff --git a/toolchain/autoupdate_testdata.py b/toolchain/autoupdate_testdata.py
index 4bd3b558b258b..23a0f166a2573 100755
--- a/toolchain/autoupdate_testdata.py
+++ b/toolchain/autoupdate_testdata.py
@@ -11,16 +11,23 @@
 import re
 import subprocess
 import sys
+import os
 from pathlib import Path
 
+directory = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
+sys.path.append(os.path.join(directory))
+import scripts.scripts_utils  # noqa: E402
+
 
 def main() -> None:
+    scripts.scripts_utils.chdir_repo_root()
+    bazel = scripts.scripts_utils.locate_bazel()
     # Use the most recently used build mode, or `fastbuild` if missing
     # `bazel-bin`.
     build_mode = "fastbuild"
     workspace = subprocess.check_output(
         [
-            "bazel",
+            bazel,
             "info",
             "workspace",
             "--ui_event_filters=stdout",
@@ -37,7 +44,7 @@ def main() -> None:
             exit(f"Build mode not found in `bazel-bin` symlink: {link}")
 
     argv = [
-        "bazel",
+        bazel,
         "run",
         "-c",
         build_mode,