diff --git a/app/models/compound_form/base.rb b/app/models/compound_form/base.rb
index 82806bc..921839a 100644
--- a/app/models/compound_form/base.rb
+++ b/app/models/compound_form/base.rb
@@ -2,12 +2,15 @@
 
 class CompoundForm::Base < ApplicationRecord
   class_attribute :rdf_namespace, :rdf_predicate
+
   self.rdf_namespace = 'iqvoc'
   self.rdf_predicate = 'compoundFrom'
 
   self.table_name ='compound_forms'
 
-  belongs_to :domain, :class_name => 'Label::Base', :foreign_key => 'domain_id'
+  belongs_to :domain,
+             class_name: 'Label::Base',
+             foreign_key: 'domain_id'
 
   has_many :compound_form_contents,
            class_name: 'CompoundForm::Content::Base',
diff --git a/app/models/compound_form/content/base.rb b/app/models/compound_form/content/base.rb
index c42d108..eac8be7 100644
--- a/app/models/compound_form/content/base.rb
+++ b/app/models/compound_form/content/base.rb
@@ -4,8 +4,13 @@ class CompoundForm::Content::Base < ApplicationRecord
 
   self.table_name ='compound_form_contents'
 
-  belongs_to :compound_form, :class_name => 'CompoundForm::Base', :foreign_key => 'compound_form_id'
-  belongs_to :label,         :class_name => 'Label::Base', :foreign_key => 'label_id'
+  belongs_to :compound_form,
+             class_name: 'CompoundForm::Base',
+             foreign_key: 'compound_form_id'
+
+  belongs_to :label,
+             class_name: 'Label::Base',
+             foreign_key: 'label_id'
 
   def self.label_published
     includes(:label).references(:labels).merge(Label::Base.published)
diff --git a/app/models/concerns/compound_forms_label_extensions.rb b/app/models/concerns/compound_forms_label_extensions.rb
index f3a897a..21c45d1 100644
--- a/app/models/concerns/compound_forms_label_extensions.rb
+++ b/app/models/concerns/compound_forms_label_extensions.rb
@@ -37,8 +37,7 @@ module CompoundFormsLabelExtensions
 
     has_many :compound_form_contents,
         through: :compound_forms,
-        class_name: "CompoundForm::Content::Base",
-        dependent: :destroy
+        class_name: "CompoundForm::Content::Base"
 
     validate :compound_form_contents_size
     validate :compound_form_contents_languages