diff --git a/app/controllers/search_controller.rb b/app/controllers/search_controller.rb
index 7e0025692..0fa3af35c 100644
--- a/app/controllers/search_controller.rb
+++ b/app/controllers/search_controller.rb
@@ -21,7 +21,7 @@ class SearchController < ApplicationController
     # convert objects string into array of class names
     # e.g. user-ticket-another_object = %w( User Ticket AnotherObject )
     if !params[:objects]
-      objects = %w( Ticket User Organization )
+      objects = Setting.get('models_searchable')
     else
       objects = params[:objects].split('-').map(&:camelize)
     end
diff --git a/app/models/ticket/search.rb b/app/models/ticket/search.rb
index 338f3cd4a..4087738f3 100644
--- a/app/models/ticket/search.rb
+++ b/app/models/ticket/search.rb
@@ -20,12 +20,12 @@ returns if user has no permissions to search
 
 =end
 
-    def search_preferences(_current_user)
-      {
-        prio: 3000,
-        direct_search_index: false,
-      }
-    end
+  def search_preferences(_current_user)
+    {
+      prio: 3000,
+      direct_search_index: false,
+    }
+  end
 
 =begin
 
@@ -79,7 +79,7 @@ returns
 
 =end
 
-  def search (params)
+  def search(params)
 
     # get params
     query        = params[:query]
diff --git a/config/initializers/zammad_constants.rb b/config/initializers/core_zammad_constants.rb
similarity index 100%
rename from config/initializers/zammad_constants.rb
rename to config/initializers/core_zammad_constants.rb
diff --git a/config/initializers/models_searchable.rb b/config/initializers/models_searchable.rb
new file mode 100644
index 000000000..d57d805f7
--- /dev/null
+++ b/config/initializers/models_searchable.rb
@@ -0,0 +1,8 @@
+# update settings for searchable models
+if ActiveRecord::Base.connection.tables.include?('settings')
+  models_current = Models.searchable.map(&:to_s)
+  models_config = Setting.get('models_searchable')
+  if models_current != models_config
+    Setting.set('models_searchable', models_current)
+  end
+end
diff --git a/db/migrate/20150816000001_update_model_searchable.rb b/db/migrate/20150816000001_update_model_searchable.rb
new file mode 100644
index 000000000..72db5ad58
--- /dev/null
+++ b/db/migrate/20150816000001_update_model_searchable.rb
@@ -0,0 +1,15 @@
+class UpdateModelSearchable < ActiveRecord::Migration
+  def up
+
+    Setting.create_if_not_exists(
+      title: 'Define searchable models.',
+      name: 'models_searchable',
+      area: 'Models::Base',
+      description: 'Define the models which can be searched for.',
+      options: {},
+      state: [],
+      frontend: false,
+    )
+
+  end
+end
diff --git a/db/seeds.rb b/db/seeds.rb
index 5f96d478e..5c2b6d362 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -1187,6 +1187,16 @@ Setting.create_if_not_exists(
   frontend: true
 )
 
+Setting.create_if_not_exists(
+  title: 'Define searchable models.',
+  name: 'models_searchable',
+  area: 'Models::Base',
+  description: 'Define the models which can be searched for.',
+  options: {},
+  state: [],
+  frontend: false,
+)
+
 Setting.create_if_not_exists(
   title: 'Default Screen',
   name: 'default_controller',
diff --git a/lib/models.rb b/lib/models.rb
index 23adfdc1c..4158450e3 100644
--- a/lib/models.rb
+++ b/lib/models.rb
@@ -10,11 +10,11 @@ get list of models
 returns
 
   {
-    'Some::Classname1' => {
+    Some::Classname1 => {
       attributes: ['id', 'name', '...']
       reflections: ...model.reflections...
     },
-    'Some::Classname2' => {
+    Some::Classname2 => {
       attributes: ['id', 'name', '...']
       reflections: ...model.reflections...
     },
@@ -49,6 +49,28 @@ returns
 
 =begin
 
+get list of searchable models
+
+  result = Models.searchable
+
+returns
+
+  [Model1, Model2, Model3]
+
+=end
+
+  def self.searchable
+    models = []
+    all.each {|model_class, options|
+      next if !model_class
+      next if !model_class.respond_to? :search_preferences
+      models.push model_class
+    }
+    models
+  end
+
+=begin
+
 get reference list of a models
 
   result = Models.references('User', 2)
diff --git a/test/unit/model_test.rb b/test/unit/model_test.rb
index 5bb8e5bf9..89de3260e 100644
--- a/test/unit/model_test.rb
+++ b/test/unit/model_test.rb
@@ -235,4 +235,13 @@ class ModelTest < ActiveSupport::TestCase
 
   end
 
+  test 'searchable test' do
+    searchable = Models.searchable
+    assert(searchable.include?(Ticket))
+    assert(searchable.include?(User))
+    assert(searchable.include?(Organization))
+    assert_equal(3, searchable.count)
+
+  end
+
 end