diff --git a/deepmd/utils/data_system.py b/deepmd/utils/data_system.py
index 0aea12e2b1..fb3521be20 100644
--- a/deepmd/utils/data_system.py
+++ b/deepmd/utils/data_system.py
@@ -28,9 +28,6 @@
 from deepmd.utils.out_stat import (
     compute_stats_from_redu,
 )
-from deepmd.utils.path import (
-    DPPath,
-)
 
 log = logging.getLogger(__name__)