diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 04b65dc..7887a4f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,52 +1,65 @@
 name: CI
 
 on:
   push: { branches: ["0.x"] }
   pull_request: { branches: ["0.x"] }
 
 jobs:
   commits:
     name: Commitlint
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v2
         with:
           fetch-depth: 1000
 
       - name: Lint commits
         uses: docker://registry.k1.zportal.co.uk/practically-oss/conventional-tools:0.x
         with:
           args: conventional-tools commitlint -l1
 
   luacheck:
     name: Luacheck
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v2
 
       - name: Install luarocks
         run: sudo apt update && sudo apt install -y luarocks
 
       - name: Install luacheck
         run: sudo luarocks install luacheck
 
       - name: Run luacheck
         run: luacheck .
 
+  clang-format:
+    name: Clang Format
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Install Dependencies
+        run: sudo apt-get update && sudo apt-get install --no-install-recommends -y clang-format findutils
+
+      - name: Run clang format
+        run: find ./cpp -name "*.cpp" -o -name "*.hpp" | xargs clang-format -Werror --dry-run
+
   test:
     name: Build and test
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v2
 
       - name: Install dependencies
         run: sudo apt update && sudo apt install -y luajit build-essential pkg-config cmake
 
       - name: Build
         run: cmake -DCMAKE_BUILD_TYPE=Release -B build/Release && (cd build/Release; make -j)
 
       - name: Test
         run: find lua -name "*_test.lua" | xargs luajit scripts/test.lua