diff --git a/searx/query.py b/searx/query.py
index e79e760a..3d617ab0 100644
--- a/searx/query.py
+++ b/searx/query.py
@@ -28,12 +28,12 @@ import re
 class Query(object):
     """parse query"""
 
-    def __init__(self, query, blocked_engines):
+    def __init__(self, query, disabled_engines):
         self.query = query
-        self.blocked_engines = []
+        self.disabled_engines = []
 
-        if blocked_engines:
-            self.blocked_engines = blocked_engines
+        if disabled_engines:
+            self.disabled_engines = disabled_engines
 
         self.query_parts = []
         self.engines = []
@@ -107,7 +107,7 @@ class Query(object):
                     self.engines.extend({'category': prefix,
                                          'name': engine.name}
                                         for engine in categories[prefix]
-                                        if (engine.name, prefix) not in self.blocked_engines)
+                                        if (engine.name, prefix) not in self.disabled_engines)
 
             if query_part[0] == '!':
                 self.specific = True
diff --git a/searx/search.py b/searx/search.py
index f38d4010..215774c0 100644
--- a/searx/search.py
+++ b/searx/search.py
@@ -140,7 +140,7 @@ class Search(object):
         self.lang = 'all'
 
         # set blocked engines
-        self.blocked_engines = request.preferences.engines.get_disabled()
+        self.disabled_engines = request.preferences.engines.get_disabled()
 
         self.result_container = ResultContainer()
         self.request_data = {}
@@ -167,7 +167,7 @@ class Search(object):
 
         # parse query, if tags are set, which change
         # the serch engine or search-language
-        query_obj = Query(self.request_data['q'], self.blocked_engines)
+        query_obj = Query(self.request_data['q'], self.disabled_engines)
         query_obj.parse_query()
 
         # set query
@@ -244,7 +244,7 @@ class Search(object):
                 self.engines.extend({'category': categ,
                                      'name': engine.name}
                                     for engine in categories[categ]
-                                    if (engine.name, categ) not in self.blocked_engines)
+                                    if (engine.name, categ) not in self.disabled_engines)
 
         # remove suspended engines
         self.engines = [e for e in self.engines
diff --git a/searx/webapp.py b/searx/webapp.py
index 5b15c43d..1420906f 100644
--- a/searx/webapp.py
+++ b/searx/webapp.py
@@ -259,19 +259,18 @@ def image_proxify(url):
 
 
 def render(template_name, override_theme=None, **kwargs):
-    blocked_engines = request.preferences.engines.get_disabled()
-    autocomplete = request.preferences.get_value('autocomplete')
+    disabled_engines = request.preferences.engines.get_disabled()
 
-    nonblocked_categories = set(category for engine_name in engines
-                                for category in engines[engine_name].categories
-                                if (engine_name, category) not in blocked_engines)
+    enabled_categories = set(category for engine_name in engines
+                             for category in engines[engine_name].categories
+                             if (engine_name, category) not in disabled_engines)
 
     if 'categories' not in kwargs:
         kwargs['categories'] = ['general']
         kwargs['categories'].extend(x for x in
                                     sorted(categories.keys())
                                     if x != 'general'
-                                    and x in nonblocked_categories)
+                                    and x in enabled_categories)
 
     if 'all_categories' not in kwargs:
         kwargs['all_categories'] = ['general']
@@ -483,10 +482,10 @@ def autocompleter():
         request_data = request.args
 
     # set blocked engines
-    blocked_engines = request.preferences.engines.get_disabled()
+    disabled_engines = request.preferences.engines.get_disabled()
 
     # parse query
-    query = Query(request_data.get('q', '').encode('utf-8'), blocked_engines)
+    query = Query(request_data.get('q', '').encode('utf-8'), disabled_engines)
     query.parse_query()
 
     # check if search query is set
@@ -544,7 +543,7 @@ def preferences():
     # render preferences
     image_proxy = request.preferences.get_value('image_proxy')
     lang = request.preferences.get_value('language')
-    blocked_engines = request.preferences.engines.get_disabled()
+    disabled_engines = request.preferences.engines.get_disabled()
     allowed_plugins = request.preferences.plugins.get_enabled()
 
     # stats for preferences page
@@ -572,7 +571,7 @@ def preferences():
                   language_codes=language_codes,
                   engines_by_category=categories,
                   stats=stats,
-                  blocked_engines=blocked_engines,
+                  blocked_engines=disabled_engines,
                   autocomplete_backends=autocomplete_backends,
                   shortcuts={y: x for x, y in engine_shortcuts.items()},
                   themes=themes,