diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 98cf54d..1693af3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,5 +35,8 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
+      - name: Lint
+        run: npx prettier . --check
+
       - name: Test
         run: make test