diff --git a/app/controllers/concerns/commentable_actions.rb b/app/controllers/concerns/commentable_actions.rb
index 9eb27226b..df232069b 100644
--- a/app/controllers/concerns/commentable_actions.rb
+++ b/app/controllers/concerns/commentable_actions.rb
@@ -81,6 +81,12 @@ module CommentableActions
       @search_terms = params[:search] if params[:search].present?
     end
 
+    def set_search_order
+      if params[:search].present? && params[:order].blank?
+        params[:order] = 'relevance'
+      end
+    end
+
     def set_resource_votes(instance)
       send("set_#{resource_name}_votes", instance)
     end
diff --git a/app/controllers/debates_controller.rb b/app/controllers/debates_controller.rb
index 8a5def88b..e28f053c7 100644
--- a/app/controllers/debates_controller.rb
+++ b/app/controllers/debates_controller.rb
@@ -4,9 +4,10 @@ class DebatesController < ApplicationController
 
   before_action :parse_search_terms, only: :index
   before_action :parse_tag_filter, only: :index
+  before_action :set_search_order, only: :index
   before_action :authenticate_user!, except: [:index, :show]
 
-  has_orders %w{hot_score confidence_score created_at most_commented random}, only: :index
+  has_orders %w{hot_score confidence_score created_at most_commented random relevance}, only: :index
   has_orders %w{most_voted newest oldest}, only: :show
 
   load_and_authorize_resource
diff --git a/app/controllers/proposals_controller.rb b/app/controllers/proposals_controller.rb
index 1be046b7a..cc8a286ec 100644
--- a/app/controllers/proposals_controller.rb
+++ b/app/controllers/proposals_controller.rb
@@ -4,9 +4,10 @@ class ProposalsController < ApplicationController
 
   before_action :parse_search_terms, only: :index
   before_action :parse_tag_filter, only: :index
+  before_action :set_search_order, only: :index
   before_action :authenticate_user!, except: [:index, :show]
 
-  has_orders %w{hot_score confidence_score created_at most_commented random}, only: :index
+  has_orders %w{hot_score confidence_score created_at most_commented random relevance}, only: :index
   has_orders %w{most_voted newest oldest}, only: :show
 
   load_and_authorize_resource
diff --git a/app/helpers/orders_helper.rb b/app/helpers/orders_helper.rb
new file mode 100644
index 000000000..08d5588ca
--- /dev/null
+++ b/app/helpers/orders_helper.rb
@@ -0,0 +1,7 @@
+module OrdersHelper
+
+  def valid_orders
+    @valid_orders.reject { |order| order =='relevance' && params[:search].blank? }
+  end
+
+end
\ No newline at end of file
diff --git a/app/views/shared/_order_selector.html.erb b/app/views/shared/_order_selector.html.erb
index 883205493..e120e98e5 100644
--- a/app/views/shared/_order_selector.html.erb
+++ b/app/views/shared/_order_selector.html.erb
@@ -1,14 +1,12 @@
-<% # Params:
-   #
-   #   i18n_namespace: for example "moderation.debates.index"
-%>
-
 <form class="inline-block">
   <label for="order-selector-participation" class="sr-only"><%= t("debates.index.select_order") %></label>
-  <select class="js-location-changer js-order-selector select-order" data-order="<%= @current_order %>" name="order-selector" id="order-selector-participation">
-     <% @valid_orders.each do |order| %>
+  <select class="js-location-changer js-order-selector select-order"
+          data-order="<%= @current_order %>"
+          name="order-selector"
+          id="order-selector-participation">
+     <% valid_orders.each do |order| %>
        <option <%= 'selected' if order == @current_order %>
-               value='<%= current_path_with_query_params(order: order, page: 1) %>'>
+          value='<%= current_path_with_query_params(order: order, page: 1) %>'>
          <%= t("#{i18n_namespace}.orders.#{order}") %>
        </option>
      <% end %>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 6d7fc70db..a91d6c235 100755
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -90,6 +90,7 @@ en:
         created_at: "newest"
         most_commented: "most commented"
         random: "random"
+        relevance: "relevance"
       filter_topic:
         one: " with topic '%{topic}'"
         other: " with topic '%{topic}'"
@@ -166,6 +167,7 @@ en:
         created_at: "newest"
         most_commented: "most commented"
         random: "random"
+        relevance: "relevance"
       filter_topic:
         one: " with topic '%{topic}'"
         other: " with topic '%{topic}'"
diff --git a/config/locales/es.yml b/config/locales/es.yml
index 9cbed4c38..431a1daf8 100644
--- a/config/locales/es.yml
+++ b/config/locales/es.yml
@@ -90,6 +90,7 @@ es:
         created_at: "más nuevos"
         most_commented: "más comentados"
         random: "aleatorio"
+        relevance: "relevancia"
       filter_topic:
         one: " con el tema '%{topic}'"
         other: " con el tema '%{topic}'"
@@ -166,6 +167,7 @@ es:
         created_at: "más nuevas"
         most_commented: "más comentadas"
         random: "aleatorias"
+        relevance: "relevancia"
       filter_topic:
         one: " con el tema '%{topic}'"
         other: " con el tema '%{topic}'"