diff --git a/searx/utils.py b/searx/utils.py
index b99a945d..1e48e37e 100644
--- a/searx/utils.py
+++ b/searx/utils.py
@@ -10,6 +10,7 @@ ua_versions = ('26.0', '27.0', '28.0')
 ua_os = ('Windows NT 6.3; WOW64', 'X11; Linux x86_64; rv:26.0')
 ua = "Mozilla/5.0 ({os}) Gecko/20100101 Firefox/{version}"
 
+
 def gen_useragent():
     # TODO
     return ua.format(os=choice(ua_os), version=choice(ua_versions))