diff --git a/searx/engines/doku.py b/searx/engines/doku.py
index 18abe75e..233fd223 100644
--- a/searx/engines/doku.py
+++ b/searx/engines/doku.py
@@ -27,6 +27,7 @@ search_url = '/?do=search'\
 # TODO             '&startRecord={offset}'\
 # TODO             '&maximumRecords={limit}'\
 
+
 # do search-request
 def request(query, params):