diff --git a/.github/workflows/a3.yml b/.github/workflows/a3.yml
index 1ee6cae7015..f7fb48aeffd 100644
--- a/.github/workflows/a3.yml
+++ b/.github/workflows/a3.yml
@@ -122,7 +122,7 @@ jobs:
     - name: pio build
       run: |
         set -x
-        echo $'alias mpiexec=\'mpiexec --oversubscribe\'' > .bashrc
+        echo 'alias mpiexec='\''mpiexec --oversubscribe'\' > .bashrc
         ls -l .bashrc
         source .bashrc
         export PATH="/home/runner/openmpi/bin:$PATH"