diff --git a/.github/workflows/lint-test-build-upload.yml b/.github/workflows/lint-test-build-upload.yml
index cf3aeec..ef68004 100644
--- a/.github/workflows/lint-test-build-upload.yml
+++ b/.github/workflows/lint-test-build-upload.yml
@@ -381,7 +381,8 @@ jobs:
       - name: Lint and test module (and compiled MCl shared library file).
         run: |
           # python -c "import mclbn256; mclbn256.mclbn256.assert_bilinearity(); mclbn256.mclbn256.assert_serializable(); print('pass')"
-          python -c "exec(\"import mclbn256\n mclbn256.mclbn256.assert_bilinearity()\n mclbn256.mclbn256.assert_serializable()\n print('pass') \")"
+          # python -c "exec(\"import mclbn256\n mclbn256.mclbn256.assert_bilinearity()\n mclbn256.mclbn256.assert_serializable()\n print('pass') \")"
+          (echo "import mclbn256" ; echo "mclbn256.mclbn256.assert_bilinearity()" ; echo "mclbn256.mclbn256.assert_serializable()" ; echo "print('pass')") | python
           # python -m pip install -U pip pylint coverage nose
           # python -m pylint mclbn256 # Check against linting rules.
           # python mclbn256/mclbn256.py -v # Run doctests.