diff --git a/oadp/dp/datasets/base.py b/oadp/dp/datasets/base.py
index 5d597bb..09f8f02 100644
--- a/oadp/dp/datasets/base.py
+++ b/oadp/dp/datasets/base.py
@@ -145,9 +145,8 @@ def filter_data(self) -> list[dict[str, Any]]:
             key: str = datum['img_path']
             patch: str = osp.split(osp.split(datum['img_path'])[0])[1]
             image_name = osp.basename(key)
-            version = image_name.split('_')[1]
             key = image_name.removesuffix('.jpg')
-            key = f'{version}_{patch}_{key}'
+            key = f'{patch}_{key}'
             keys[key] = i
 
         invalid_indices = {keys[key] for key in keys.keys() - valid_keys}