diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 8c24bd3065b54212ab55092f1c774daa2d0815fc..d2ea7df800630e7f684ce11390d095ad18557310 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -82,7 +82,8 @@ jobs:
         run: |
           bash -c '
             for WDL_FILE in $(git ls-files *.wdl); do
-              wdl-aid --strict $WDL_FILE > /dev/null 2> wdl-aid_stderr || if grep -vz  "ValueError: Missing parameter_meta for inputs:" wdl-aid_stderr
+              wdl-aid --strict $WDL_FILE > /dev/null 2> wdl-aid_stderr || 
+              if grep -z  "ValueError: Missing parameter_meta for inputs:" wdl-aid_stderr
               then
                  exit 1
               fi