diff --git a/examples/basic_engine.py b/examples/basic_engine.py
index 36fb6260..34c34d89 100644
--- a/examples/basic_engine.py
+++ b/examples/basic_engine.py
@@ -1,4 +1,6 @@
 
+categories = ['general'] # optional
+
 def request(query, params):
     '''pre-request callback
     params<dict>:
diff --git a/searx/templates/search.html b/searx/templates/search.html
index ab83d77e..e9ec4bc3 100644
--- a/searx/templates/search.html
+++ b/searx/templates/search.html
@@ -3,8 +3,8 @@
     <input type="submit" value="search" />
     <p>
     {% for category in categories %}
-        {{ category }}: <input type="checkbox" name="category_{{ category }}" {% if category in selected_categories %}checked="checked"{% endif %} />
+        <input type="checkbox" name="category_{{ category }}" {% if category in selected_categories %}checked="checked"{% endif %} />{{ category }}
     {% endfor %}
     </p>
-    <p>remember categories:<input type="checkbox" name="save" checked="checked" /></p>
+    <p><input type="checkbox" name="save" checked="checked" />remember categories</p>
 </form>