diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
new file mode 100644
index 0000000..a614401
--- /dev/null
+++ b/.github/workflows/style.yml
@@ -0,0 +1,9 @@
+name: style
+on: [push, workflow_dispatch]
+
+jobs:
+  C:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: ./clang-format.bash check