diff --git a/clang-format.py b/clang-format.py
index 8e884d4..84f9429 100755
--- a/clang-format.py
+++ b/clang-format.py
@@ -27,7 +27,7 @@
 # that have formatting errors are printed with this prefix.
 DIFF_MARKER_PREFIX = '+++ b/'
 
-BUILDTOOLS_PATH = os.path.join(constants.SOURCE_ROOT, 'chromium', 'src',
+BUILDTOOLS_PATH = os.path.join(constants.SOURCE_ROOT, 'src', 'chromium', 'src',
                                'buildtools')