diff --git a/pygeoapi/util.py b/pygeoapi/util.py
index e67b4e0..ac9f863 100644
--- a/pygeoapi/util.py
+++ b/pygeoapi/util.py
@@ -68,8 +68,8 @@ def dategetter(date_property, collection):
     :param date_property: property representing the date
     :param collection: dictionary to check within
 
-    :returns: `str` (ISO8601) representing the date. (allowing for an open interval
-        using null).
+    :returns: `str` (ISO8601) representing the date (allowing
+               for an open interval using null)
     """
 
     value = collection.get(date_property, None)