diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 50e579b..ee86d64 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -66,8 +66,7 @@ jobs:
 
       - name: Use GFortran
         if: runner.os == 'macOS'
-        run: |
-          echo "CC=clang" >> $GITHUB_ENV
+        run: echo "CC=clang" >> $GITHUB_ENV
 
       - name: Install package
         run: python -m pip install .[test]