diff --git a/jdaviz/core/marks.py b/jdaviz/core/marks.py
index c75d198234..80bc70880c 100644
--- a/jdaviz/core/marks.py
+++ b/jdaviz/core/marks.py
@@ -151,7 +151,6 @@ def set_y_unit(self, unit=None):
 
         self.yunit = unit
 
-
     def _on_global_display_unit_changed(self, msg):
         if not self.auto_update_units:
             return