diff --git a/utils/check-style-clang-format.py b/utils/check-style-clang-format.py
index c943b20e8..9ad2e5ee5 100755
--- a/utils/check-style-clang-format.py
+++ b/utils/check-style-clang-format.py
@@ -71,6 +71,7 @@ FILE_EXTENSIONS_TO_CHECK_WHITESPACE = [
     '.c',
     '.cc',
     '.click',
+    '.cmake',
     '.conf',
     '.css',
     '.dot',