diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 41c3626f..94286a32 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -44,3 +44,20 @@ jobs:
         with:
           command: build
           args: --manifest-path payjoin-client/Cargo.toml
+
+  fmt:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+      matrix:
+        rust: [nightly]
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: Swatinem/rust-cache@v1.2.0
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+      - run: rustup component add rustfmt --toolchain nightly-x86_64-unknown-linux-gnu
+      - run: cargo fmt --all -- --check