diff --git a/Build/Scripts/runTests.sh b/Build/Scripts/runTests.sh
index 01ccc0b..39aaae6 100755
--- a/Build/Scripts/runTests.sh
+++ b/Build/Scripts/runTests.sh
@@ -162,6 +162,7 @@ Options:
             - lintYaml: YAML linting
             - phpstan: phpstan tests
             - phpstanGenerateBaseline: regenerate phpstan baseline, handy after phpstan updates
+            - shellcheck: check runTests.sh for shell issues
             - unit (default): PHP unit tests
             - unitRandom: PHP unit tests in random order, add -o <number> to use specific seed