diff --git a/jdaviz/configs/cubeviz/helper.py b/jdaviz/configs/cubeviz/helper.py
index 6fc3f6b909..e4bf813fc9 100644
--- a/jdaviz/configs/cubeviz/helper.py
+++ b/jdaviz/configs/cubeviz/helper.py
@@ -2,6 +2,7 @@
 from jdaviz.configs.default.plugins.line_lists.line_list_mixin import LineListMixin
 from jdaviz.configs.specviz import SpecViz
 
+
 class CubeViz(ConfigHelper, LineListMixin):
     """CubeViz Helper class"""
     _default_configuration = 'cubeviz'
diff --git a/jdaviz/configs/mosviz/helper.py b/jdaviz/configs/mosviz/helper.py
index 9b030d0cb0..a9d5d928c7 100644
--- a/jdaviz/configs/mosviz/helper.py
+++ b/jdaviz/configs/mosviz/helper.py
@@ -9,7 +9,6 @@
 from jdaviz.configs.specviz import SpecViz
 
 
-
 class MosViz(ConfigHelper):
     """MosViz Helper class"""