diff --git a/db/migrate/20120101000001_create_base.rb b/db/migrate/20120101000001_create_base.rb
index 677fc1e66..877618059 100644
--- a/db/migrate/20120101000001_create_base.rb
+++ b/db/migrate/20120101000001_create_base.rb
@@ -323,6 +323,7 @@ class CreateBase < ActiveRecord::Migration
       t.string :state_current,          limit: 2000, null: true
       t.string :state_initial,          limit: 2000, null: true
       t.boolean :frontend,                           null: false
+      t.string :preferences,            limit: 2000, null: true
       t.timestamps
     end
     add_index :settings, [:name], unique: true
diff --git a/db/migrate/20150712000001_update_setting.rb b/db/migrate/20150712000001_update_setting.rb
deleted file mode 100644
index fa9d50478..000000000
--- a/db/migrate/20150712000001_update_setting.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class UpdateSetting < ActiveRecord::Migration
-  def up
-    %w(product_name product_logo organization).each {|setting_name|
-      setting = Setting.find_by(name: setting_name)
-      next if !setting
-      setting.area = 'System::Branding'
-      setting.save
-    }
-  end
-end
diff --git a/db/migrate/20150712000002_update_setting2.rb b/db/migrate/20150712000002_update_setting2.rb
deleted file mode 100644
index d2aca3055..000000000
--- a/db/migrate/20150712000002_update_setting2.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class UpdateSetting2 < ActiveRecord::Migration
-  def up
-
-    # add preferences
-    add_column :settings, :preferences, :string, limit: 2000, null: true
-    Setting.reset_column_information
-
-  end
-end
diff --git a/db/migrate/20150712000003_update_setting3.rb b/db/migrate/20150712000003_update_setting3.rb
deleted file mode 100644
index 685085dd1..000000000
--- a/db/migrate/20150712000003_update_setting3.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-class UpdateSetting3 < ActiveRecord::Migration
-  def up
-
-    # update settings
-    %w(product_name ticket_hook chat).each {|setting_name|
-      setting = Setting.find_by(name: setting_name)
-      next if !setting
-      setting.preferences[:render] = true
-      setting.save
-    }
-    %w(product_name).each {|setting_name|
-      setting = Setting.find_by(name: setting_name)
-      next if !setting
-      setting.preferences[:session_check] = true
-      setting.save
-    }
-    setting = Setting.find_by(name: 'product_name')
-    if setting
-      setting.preferences[:prio] = 1
-      setting.save
-    end
-    setting = Setting.find_by(name: 'organization')
-    if setting
-      setting.preferences[:prio] = 2
-      setting.save
-    end
-    setting = Setting.find_by(name: 'product_logo')
-    return if !setting
-    setting.preferences[:prio] = 3
-    setting.save
-  end
-end