diff --git a/.github/workflows/a4.yml b/.github/workflows/a4.yml
index 7259530c24e..3a20a8995e9 100644
--- a/.github/workflows/a4.yml
+++ b/.github/workflows/a4.yml
@@ -120,6 +120,7 @@ jobs:
     - name: autotools build
       run: |
         set -x
+        gcc --version
         echo 'export PATH=/home/runner/mpich/bin:$PATH' > .bashrc
         source .bashrc
         export CC=/home/runner/mpich/bin/mpicc