diff --git a/plugins/custom_forms/lib/custom_forms_plugin/select_field.rb b/plugins/custom_forms/lib/custom_forms_plugin/select_field.rb
index c9084ee..f5577a9 100644
--- a/plugins/custom_forms/lib/custom_forms_plugin/select_field.rb
+++ b/plugins/custom_forms/lib/custom_forms_plugin/select_field.rb
@@ -3,4 +3,6 @@ class CustomFormsPlugin::SelectField < CustomFormsPlugin::Field
 
   validates_length_of :select_field_type, :minimum => 1, :allow_nil => false
   validates_inclusion_of :select_field_type, :in => %w(radio check_box select multiple_select)
+
+  validates_length_of :alternatives, :minimum => 1
 end
diff --git a/plugins/custom_forms/test/unit/custom_forms_plugin/select_field_test.rb b/plugins/custom_forms/test/unit/custom_forms_plugin/select_field_test.rb
index 2cfc0e1..efd7b62 100644
--- a/plugins/custom_forms/test/unit/custom_forms_plugin/select_field_test.rb
+++ b/plugins/custom_forms/test/unit/custom_forms_plugin/select_field_test.rb
@@ -1,8 +1,17 @@
 require File.dirname(__FILE__) + '/../../../../../test/test_helper'
 
 class CustomFormsPlugin::SelectFieldTest < ActiveSupport::TestCase
+  should 'have alternative' do
+    select = CustomFormsPlugin::SelectField.new(:name => 'select_field001' )
+    assert !select.save
+
+    select.alternatives << CustomFormsPlugin::Alternative.new(:label => 'option')
+    assert select.save
+  end
+
   should 'validate type' do
     select = CustomFormsPlugin::SelectField.new(:name => 'select_field001' )
+    select.alternatives << CustomFormsPlugin::Alternative.new(:label => 'option')
 
     select.update_attribute(:select_field_type, 'random')
     assert select.invalid?
--
libgit2 0.21.2