diff --git a/third_party/nix/.clang-format b/third_party/nix/.clang-format
new file mode 100644
index 000000000..faefcfa1c
--- /dev/null
+++ b/third_party/nix/.clang-format
@@ -0,0 +1,6 @@
+# Use the Google style in this project.
+BasedOnStyle: Google
+DerivePointerAlignment: false
+PointerAlignment: Left
+IncludeBlocks: Merge
+CommentPragmas: '(@copydoc)'