diff --git a/.github/workflows/tests_eessi_module.yml b/.github/workflows/tests_eessi_module.yml
index d2e3cd1338..8d6bd6edb0 100644
--- a/.github/workflows/tests_eessi_module.yml
+++ b/.github/workflows/tests_eessi_module.yml
@@ -80,6 +80,7 @@ jobs:
               echo "Test for checking env variables PASSED"
           else 
               echo "Test for checking env variables FAILED"  >&2
+              diff "${moduleoutfile}" "${sourceoutfile}" 
               exit 1
           fi