diff --git a/ansible_testing/schema.py b/ansible_testing/schema.py
index 76d0df7fdf..e53831045b 100644
--- a/ansible_testing/schema.py
+++ b/ansible_testing/schema.py
@@ -4,7 +4,7 @@ option_schema = Schema(
     {
         Required('description'): Any(basestring, [basestring]),
         'required': bool,
-        'choices': Any(list, basestring),
+        'choices': list,
         'aliases': list,
         'version_added': Any(basestring, float)
     },