diff --git a/atst/filters.py b/atst/filters.py
index 83a911e5..ee214a43 100644
--- a/atst/filters.py
+++ b/atst/filters.py
@@ -76,6 +76,7 @@ def formattedDate(value, formatter="%m/%d/%Y"):
 def dateFromString(value, formatter="%m/%Y"):
     return datetime.datetime.strptime(value, formatter)
 
+
 def string(value):
     return app.jinja_env.filters["string"](value)