diff --git a/searx/settings_robot.yml b/searx/settings_robot.yml
index 7d2701449..dbaf2fd52 100644
--- a/searx/settings_robot.yml
+++ b/searx/settings_robot.yml
@@ -13,6 +13,7 @@ server:
     secret_key : "ultrasecretkey" # change this!
     base_url : False
     image_proxy : False
+    http_protocol_version : "1.0"
 
 ui:
     themes_path : ""
diff --git a/searx/webapp.py b/searx/webapp.py
index f8253ec00..8f02a034e 100644
--- a/searx/webapp.py
+++ b/searx/webapp.py
@@ -81,7 +81,7 @@ except ImportError:
 
 # serve pages with HTTP/1.1
 from werkzeug.serving import WSGIRequestHandler
-WSGIRequestHandler.protocol_version = "HTTP/{}".format(settings['server']['http_protocol_version'])
+WSGIRequestHandler.protocol_version = "HTTP/{}".format(settings['server'].get('http_protocol_version', '1.0'))
 
 static_path, templates_path, themes =\
     get_themes(settings['ui']['themes_path']