diff --git a/deepmd/infer/deep_dos.py b/deepmd/infer/deep_dos.py
index e90fb4aed4..7823f02999 100644
--- a/deepmd/infer/deep_dos.py
+++ b/deepmd/infer/deep_dos.py
@@ -55,7 +55,7 @@ def output_def(self) -> ModelOutputDef:
                 ]
             )
         )
-    
+
     @property
     def numb_dos(self) -> int:
         """Get the number of DOS."""