diff --git a/.github/workflows/rustfmt_check.yml b/.github/workflows/rustfmt_check.yml
index 1d0d4e52c..38626bca0 100644
--- a/.github/workflows/rustfmt_check.yml
+++ b/.github/workflows/rustfmt_check.yml
@@ -13,6 +13,9 @@ jobs:
           rustup toolchain install nightly
           rustup component add rustfmt --toolchain nightly
 
+      - name: Ensure the `main` branch rustfmt is applied for the run
+        run: git checkout main rustfmt.toml
+
       - name: Run cargo +nightly fmt --check
         run: cargo +nightly fmt --check