diff --git a/src/imars3d/backend/dataio/data.py b/src/imars3d/backend/dataio/data.py
index d3d4bc21..ebbdd648 100644
--- a/src/imars3d/backend/dataio/data.py
+++ b/src/imars3d/backend/dataio/data.py
@@ -75,7 +75,6 @@ def _resolve(self, paths):
             return super()._resolve(paths)
 
 
-
 class load_data(param.ParameterizedFunction):
     """
     Load data with given input.