diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 064d421..9153d05 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,6 +7,20 @@ on:
     branches: [ main ]
 
 jobs:
+  format:
+    name: Check formatting
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+
+      - name: Check formatting
+        run: python3 red/scripts/format_rust.py --check
+
   ubuntu:
     runs-on: ubuntu-latest
     steps: