diff --git a/python/common.py b/python/common.py
index 3703ca2..f14d404 100644
--- a/python/common.py
+++ b/python/common.py
@@ -4,6 +4,7 @@ from __future__ import annotations
 
 import logging
 from datetime import UTC, datetime
+from pathlib import Path
 from subprocess import PIPE, Popen
 
 from python.logging_config import configure_logger as _configure_logger
@@ -11,6 +12,11 @@ from python.logging_config import configure_logger as _configure_logger
 logger = logging.getLogger(__name__)
 
 
+def get_repo_dir() -> Path:
+    """Return the repository root directory."""
+    return Path(__file__).resolve().parents[1]
+
+
 def configure_logger(level: str = "INFO") -> None:
     """Configure the logger."""
     _configure_logger(level)
diff --git a/python/tools/whisper/transcribe.py b/python/tools/whisper/transcribe.py
index 2003696..cf4aae0 100644
--- a/python/tools/whisper/transcribe.py
+++ b/python/tools/whisper/transcribe.py
@@ -14,7 +14,7 @@ from typing import Annotated
 
 import typer
 
-from python.common import configure_logger
+from python.common import configure_logger, get_repo_dir
 
 logger = logging.getLogger(__name__)
 
@@ -24,7 +24,7 @@ class Config:
 
     image_tag = "whisper-transcribe:latest"
     model_volume = "whisper-models"
-    repo_root = Path(__file__).resolve().parents[3]
+    repo_root = get_repo_dir()
     dockerfile = Path(__file__).resolve().parent / "Dockerfile"
     huggingface_cache = "/root/.cache/huggingface"
 
diff --git a/tests/test_common.py b/tests/test_common.py
index ca86873..2ce9799 100644
--- a/tests/test_common.py
+++ b/tests/test_common.py
@@ -2,7 +2,14 @@
 
 from __future__ import annotations
 
-from python.common import bash_wrapper, utcnow
+from python.common import bash_wrapper, get_repo_dir, utcnow
+
+
+def test_get_repo_dir() -> None:
+    """test_get_repo_dir."""
+    repo_dir = get_repo_dir()
+    assert (repo_dir / "pyproject.toml").is_file()
+    assert (repo_dir / "python" / "common.py").is_file()
 
 
 def test_utcnow() -> None: