diff --git a/app/javascript/src/javascripts/autocomplete.js.erb b/app/javascript/src/javascripts/autocomplete.js.erb
index c207da5fc..b57939ce8 100644
--- a/app/javascript/src/javascripts/autocomplete.js.erb
+++ b/app/javascript/src/javascripts/autocomplete.js.erb
@@ -6,6 +6,7 @@ let Autocomplete = {};
 Autocomplete.METATAGS = <%= PostQueryBuilder::METATAGS.to_json.html_safe %>;
 Autocomplete.TAG_CATEGORIES = <%= TagCategory.mapping.to_json.html_safe %>;
 Autocomplete.ORDER_METATAGS = <%= PostQueryBuilder::ORDER_METATAGS.to_json.html_safe %>;
+Autocomplete.DISAPPROVAL_REASONS = <%= PostDisapproval::REASONS.to_json.html_safe %>;
 /* eslint-enable */
 
 Autocomplete.TAG_PREFIXES = "-|~|" + Object.keys(Autocomplete.TAG_CATEGORIES).map(category => category + ":").join("|");
@@ -286,9 +287,7 @@ Autocomplete.static_metatags = {
   filetype: [
     "jpg", "png", "gif", "swf", "zip", "webm", "mp4"
   ],
-  disapproved: [
-    "disinterest", "poor_quality", "breaks_rules"
-  ]
+  disapproved: Autocomplete.DISAPPROVAL_REASONS
 }
 
 Autocomplete.static_metatag_source = function(term, metatag) {
diff --git a/app/models/post_disapproval.rb b/app/models/post_disapproval.rb
index 24a711923..5557a1b87 100644
--- a/app/models/post_disapproval.rb
+++ b/app/models/post_disapproval.rb
@@ -1,16 +1,17 @@
 class PostDisapproval < ApplicationRecord
   DELETION_THRESHOLD = 1.month
+  REASONS = %w[breaks_rules poor_quality disinterest]
 
   belongs_to :post
   belongs_to :user
   validates_uniqueness_of :post_id, :scope => [:user_id], :message => "have already hidden this post"
-  validates_inclusion_of :reason, :in => %w(legacy breaks_rules poor_quality disinterest)
+  validates_inclusion_of :reason, in: REASONS
 
   scope :with_message, -> { where.not(message: nil) }
   scope :without_message, -> { where(message: nil) }
   scope :breaks_rules, -> {where(:reason => "breaks_rules")}
   scope :poor_quality, -> {where(:reason => "poor_quality")}
-  scope :disinterest, -> {where(:reason => ["disinterest", "legacy"])}
+  scope :disinterest, -> {where(:reason => "disinterest")}
 
   def self.prune!
     PostDisapproval.where("post_id in (select _.post_id from post_disapprovals _ where _.created_at < ?)", DELETION_THRESHOLD.ago).delete_all
diff --git a/app/views/post_disapprovals/_detailed_rejection_dialog.html.erb b/app/views/post_disapprovals/_detailed_rejection_dialog.html.erb
index 59fa8e9c1..a72e1e5ed 100644
--- a/app/views/post_disapprovals/_detailed_rejection_dialog.html.erb
+++ b/app/views/post_disapprovals/_detailed_rejection_dialog.html.erb
@@ -3,7 +3,7 @@
 
   <%= edit_form_for(PostDisapproval.new, url: post_disapprovals_path, remote: true, html: { id: "detailed-rejection-form" }) do |f| %>
     <%= f.hidden_field :post_id, value: "x" %>
-    <%= f.input :reason, collection: [["Breaks Rules", "breaks_rules"], ["Poor Quality", "poor_quality"], ["No interest", "disinterest"]] %>
+    <%= f.input :reason, collection: PostDisapproval::REASONS.map { |x| [x.humanize, x] } %>
     <%= f.input :message, as: :string %>
   <% end %>
 </div>
diff --git a/app/views/post_disapprovals/index.html.erb b/app/views/post_disapprovals/index.html.erb
index f3f836caf..84087cd22 100644
--- a/app/views/post_disapprovals/index.html.erb
+++ b/app/views/post_disapprovals/index.html.erb
@@ -7,7 +7,7 @@
       <%= f.input :post_id, label: "Post ID", input_html: { value: params[:search][:post_id] } %>
       <%= f.input :post_tags_match, label: "Tags", input_html: { value: params[:search][:post_tags_match], data: { autocomplete: "tag-query" } } %>
       <%= f.input :message_matches, label: "Message", input_html: { value: params[:search][:message_matches] } %>
-      <%= f.input :reason, label: "Reason", collection: %w[breaks_rules disinterest poor_quality].map { |x| [x.humanize, x] }, include_blank: true, selected: params[:search][:reason] %>
+      <%= f.input :reason, label: "Reason", collection: PostDisapproval::REASONS.map { |x| [x.humanize, x] }, include_blank: true, selected: params[:search][:reason] %>
       <%= f.input :has_message, label: "Has Message?", collection: %w[Yes No], include_blank: true, selected: params[:search][:has_message] %>
       <%= f.input :order, collection: [["ID", "id_desc"], ["Post ID", "post_id_desc"]], selected: params[:search][:order] %>
       <%= f.submit "Search" %>
diff --git a/db/migrate/20200403210353_change_reason_default_on_post_disapprovals.rb b/db/migrate/20200403210353_change_reason_default_on_post_disapprovals.rb
new file mode 100644
index 000000000..bec85d44e
--- /dev/null
+++ b/db/migrate/20200403210353_change_reason_default_on_post_disapprovals.rb
@@ -0,0 +1,6 @@
+class ChangeReasonDefaultOnPostDisapprovals < ActiveRecord::Migration[6.0]
+  def change
+    change_column_null :post_disapprovals, :reason, false
+    change_column_default :post_disapprovals, :reason, from: "legacy", to: nil
+  end
+end
diff --git a/db/structure.sql b/db/structure.sql
index b5d3db372..bbcbade6c 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -2644,7 +2644,7 @@ CREATE TABLE public.post_disapprovals (
     post_id integer NOT NULL,
     created_at timestamp without time zone,
     updated_at timestamp without time zone,
-    reason character varying DEFAULT 'legacy'::character varying,
+    reason character varying NOT NULL,
     message text
 );
 
@@ -7364,6 +7364,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20200309043653'),
 ('20200318224633'),
 ('20200325073456'),
-('20200325074859');
+('20200325074859'),
+('20200403210353');
 
 
diff --git a/test/factories/post_disapproval.rb b/test/factories/post_disapproval.rb
index 38b1ae024..55052a2b5 100644
--- a/test/factories/post_disapproval.rb
+++ b/test/factories/post_disapproval.rb
@@ -2,7 +2,7 @@ FactoryBot.define do
   factory(:post_disapproval) do
     user
     post
-    reason { %w(breaks_rules poor_quality disinterest).sample }
+    reason { PostDisapproval::REASONS.sample }
     message { FFaker::Lorem.sentence }
   end
 end
diff --git a/test/system/autocomplete_test.rb b/test/system/autocomplete_test.rb
index 311ad9103..63769a1c3 100644
--- a/test/system/autocomplete_test.rb
+++ b/test/system/autocomplete_test.rb
@@ -45,8 +45,8 @@ class AutocompleteTest < ApplicationSystemTestCase
         assert_metatag_autocomplete_equals(%w[rating note status], "locked")
         assert_metatag_autocomplete_equals(%w[safe questionable explicit], "rating")
         assert_metatag_autocomplete_equals(%w[gif jpg mp4 png swf webm zip], "filetype")
-        assert_metatag_autocomplete_equals(%w[any none disinterest poor_quality breaks_rules], "disapproval")
         assert_metatag_autocomplete_equals(%w[active any banned deleted flagged modqueue pending unmoderated], "status")
+        assert_metatag_autocomplete_equals(PostDisapproval::REASONS, "disapproval")
       end
 
       should "work for username metatags" do
diff --git a/test/unit/post_disapproval_test.rb b/test/unit/post_disapproval_test.rb
index 7aaa5b8aa..2431b4fa6 100644
--- a/test/unit/post_disapproval_test.rb
+++ b/test/unit/post_disapproval_test.rb
@@ -26,7 +26,7 @@ class PostDisapprovalTest < ActiveSupport::TestCase
 
       context "made by alice" do
         setup do
-          @disapproval = PostDisapproval.create(:user => @alice, :post => @post_1)
+          @disapproval = create(:post_disapproval, user: @alice, post: @post_1)
         end
 
         context "when the current user is alice" do
@@ -57,9 +57,7 @@ class PostDisapprovalTest < ActiveSupport::TestCase
         setup do
           @post = FactoryBot.create(:post)
           @user = FactoryBot.create(:user)
-          travel_to(2.months.ago) do
-            @disapproval = PostDisapproval.create(:user => @user, :post => @post)
-          end
+          @disapproval = create(:post_disapproval, user: @user, post: @post, created_at: 2.months.ago)
         end
 
         should "be pruned" do