diff --git a/devise_2fa.gemspec b/devise_2fa.gemspec
index 51ea539..d832530 100644
--- a/devise_2fa.gemspec
+++ b/devise_2fa.gemspec
@@ -24,6 +24,7 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency 'rotp', '~> 5.1'
   gem.add_runtime_dependency 'rqrcode', '~> 0.10.1'
   gem.add_runtime_dependency 'symmetric-encryption', '~> 4.3.0'
+  gem.requirements << 'SymmetricEncryption must be configured prior to using this gem.'
 
   gem.add_development_dependency 'appraisal'
   gem.add_development_dependency 'capybara'
diff --git a/lib/generators/active_record/devise_two_factor_generator.rb b/lib/generators/active_record/devise_two_factor_generator.rb
index 70e4b7f..77075fb 100755
--- a/lib/generators/active_record/devise_two_factor_generator.rb
+++ b/lib/generators/active_record/devise_two_factor_generator.rb
@@ -21,10 +21,8 @@ def inject_field_types
 
       def content
 <<RUBY
-  attr_encrypted :otp_auth_secret
-  attr_encrypted :otp_recovery_secret
-  validates :otp_auth_secret, symmetric_encryption: true
-  validates :otp_recovery_secret, symmetric_encryption: true
+  attribute :otp_auth_secret, :encrypted
+  attribute :otp_recovery_secret, :encrypted
 RUBY
       end