diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 4edf09f4..2005f074 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -251,7 +251,7 @@ jobs:
         with:
           toolchain: stable
           components: rustfmt
-      - run: cargo fmt --manifest-path ${{ matrix.path }} --all --check
+      - run: cargo fmt --manifest-path ${{ matrix.path }} -- --check
       - run: cargo build --manifest-path ${{ matrix.path }}
       - run: cargo test --manifest-path ${{ matrix.path }}
       - if: ${{ contains(matrix.path, 'core/Cargo.toml') }}