diff --git a/app/controllers/concerns/translatable.rb b/app/controllers/concerns/translatable.rb
index 94cdcaaab..533b8db22 100644
--- a/app/controllers/concerns/translatable.rb
+++ b/app/controllers/concerns/translatable.rb
@@ -3,10 +3,13 @@ module Translatable
 
   private
 
-    def translation_params(resource_model)
-      {
-        translations_attributes: [:id, :_destroy, :locale] +
-                                 resource_model.translated_attribute_names
-      }
+    def translation_params(resource_model, options = {})
+      attributes = [:id, :locale, :_destroy]
+      if options[:only]
+        attributes += [*options[:only]]
+      else
+        attributes += resource_model.translated_attribute_names
+      end
+      { translations_attributes: attributes - [*options[:except]] }
     end
 end
diff --git a/app/controllers/proposals_controller.rb b/app/controllers/proposals_controller.rb
index 9bf5dc7fd..6f35d44be 100644
--- a/app/controllers/proposals_controller.rb
+++ b/app/controllers/proposals_controller.rb
@@ -104,12 +104,14 @@ class ProposalsController < ApplicationController
                     documents_attributes: [:id, :title, :attachment, :cached_attachment,
                                            :user_id, :_destroy],
                     map_location_attributes: [:latitude, :longitude, :zoom]]
-      params.require(:proposal).permit(attributes, translation_params(Proposal))
+      translations_attributes = translation_params(Proposal, except: :retired_explanation)
+      params.require(:proposal).permit(attributes, translations_attributes)
     end
 
     def retired_params
       attributes = [:retired_reason]
-      params.require(:proposal).permit(attributes, translation_params(Proposal))
+      translations_attributes = translation_params(Proposal, only: :retired_explanation)
+      params.require(:proposal).permit(attributes, translations_attributes)
     end
 
     def resource_model