diff --git a/app/admin/builders.rb b/app/admin/builders.rb
index 2d78674b1..ae15d601a 100644
--- a/app/admin/builders.rb
+++ b/app/admin/builders.rb
@@ -2,13 +2,13 @@ ActiveAdmin.register_page 'Builders' do
   content do
     table do
       thead do
-        ["id", "system?", "Hostname", "Busy workers", "Supported Arches", "Supported Platforms"].each &method(:th)
+        ["id", "system?", "Hostname", "Busy workers", "Query String"].each &method(:th)
       end
       tbody do
         RpmBuildNode.all.to_a.each do |node|
           next unless node.user_id
           tr do
-            %w(id system host busy_workers supported_arches supported_platforms).each do |col|
+            %w(id system host busy_workers query_string).each do |col|
               td { node.send(col) }
             end
           end
diff --git a/app/controllers/api/v1/jobs_controller.rb b/app/controllers/api/v1/jobs_controller.rb
index 946bc7588..d2464c55b 100644
--- a/app/controllers/api/v1/jobs_controller.rb
+++ b/app/controllers/api/v1/jobs_controller.rb
@@ -62,8 +62,7 @@ class Api::V1::JobsController < Api::V1::BaseController
         worker_count:        params[:worker_count],
         busy_workers:        params[:busy_workers],
         host:                params[:host],
-        supported_arches:    params[:supported_arches],
-        supported_platforms: params[:supported_platforms]
+        query_string:        params[:query_string].to_s
       ) rescue nil
     end
     render nothing: true
diff --git a/app/models/rpm_build_node.rb b/app/models/rpm_build_node.rb
index c19f9508f..be6e989a2 100644
--- a/app/models/rpm_build_node.rb
+++ b/app/models/rpm_build_node.rb
@@ -13,8 +13,7 @@ class RpmBuildNode < Ohm::Model
   attribute :busy_workers
   attribute :system
   attribute :host
-  attribute :supported_arches
-  attribute :supported_platforms
+  attribute :query_string
 
   def user
     User.where(id: user_id).first