diff --git a/otc_metadata/services.py b/otc_metadata/services.py
index 98ece2e..b35dacf 100644
--- a/otc_metadata/services.py
+++ b/otc_metadata/services.py
@@ -37,7 +37,7 @@ class Services(object):
         sorted_docs = []
         for doc in self._service_data["documents"]:
             sorted_docs.append(dict(sorted(doc.items(), key=lambda kv: kv[0])))
-        
+
         # sort docs list by <service_type>_<title>
         self._service_data["documents"] = sorted(
             sorted_docs,