diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index a27c64f..dc9f457 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -49,8 +49,6 @@ jobs:
       - run: cargo check
       - run: cargo test
         if: matrix.os == 'ubuntu' && matrix.rust == 'nightly'
-      - run: cargo run -- expand --manifest-path tests/Cargo.toml > expand.rs && diff tests/lib.expand.rs expand.rs
-        if: startsWith(matrix.rust, 'nightly')
       - uses: actions/upload-artifact@v4
         if: matrix.os == 'ubuntu' && matrix.rust == 'nightly' && always()
         with: