diff --git a/evalharness/data/datasets/cmmlu.py b/evalharness/data/datasets/cmmlu.py
index 6312d99..7eb1cde 100644
--- a/evalharness/data/datasets/cmmlu.py
+++ b/evalharness/data/datasets/cmmlu.py
@@ -20,7 +20,7 @@ from ..spec import DatasetSpec
         subset='anatomy',  # 67 subjects; override with --subset <subject> or 'all'
         split='test',
         few_shot_split='dev',
-        few_shot_num=5,
+        few_shot_num=0,   # es default is 0-shot (docstring says 5 but code says 0)
         task_type='mcq',
         tags=['zh', 'knowledge'],
         description='Chinese multiple-choice QA (official content, ModelScope mirror).',