diff --git a/app/javascript/mastodon/api_types/accounts.ts b/app/javascript/mastodon/api_types/accounts.ts
index 41694af4b4..a9464b1a47 100644
--- a/app/javascript/mastodon/api_types/accounts.ts
+++ b/app/javascript/mastodon/api_types/accounts.ts
@@ -48,7 +48,6 @@ export interface ApiAccountJSON {
   discoverable: boolean;
   indexable: boolean;
   display_name: string;
-  emoji_reaction_available_server: boolean;
   emojis: ApiCustomEmojiJSON[];
   fields: ApiAccountFieldJSON[];
   followers_count: number;
diff --git a/app/javascript/mastodon/models/account.ts b/app/javascript/mastodon/models/account.ts
index fc6b2d4682..6681b9df12 100644
--- a/app/javascript/mastodon/models/account.ts
+++ b/app/javascript/mastodon/models/account.ts
@@ -102,7 +102,6 @@ export const accountDefaultValues: AccountShape = {
   display_name: '',
   display_name_html: '',
   server_features: AccountServerFeaturesFactory(),
-  emoji_reaction_available_server: false,
   emojis: List<CustomEmoji>(),
   fields: List<AccountField>(),
   group: false,
diff --git a/app/serializers/rest/account_serializer.rb b/app/serializers/rest/account_serializer.rb
index b7520bbfb4..db50d3e30f 100644
--- a/app/serializers/rest/account_serializer.rb
+++ b/app/serializers/rest/account_serializer.rb
@@ -7,7 +7,7 @@ class REST::AccountSerializer < ActiveModel::Serializer
   # Please update `app/javascript/mastodon/api_types/accounts.ts` when making changes to the attributes
 
   attributes :id, :username, :acct, :display_name, :locked, :bot, :discoverable, :indexable, :group, :created_at,
-             :note, :url, :uri, :avatar, :avatar_static, :header, :header_static, :subscribable, :emoji_reaction_available_server,
+             :note, :url, :uri, :avatar, :avatar_static, :header, :header_static, :subscribable,
              :followers_count, :following_count, :statuses_count, :last_status_at, :hide_collections, :other_settings, :noindex,
              :server_features
 
@@ -120,10 +120,6 @@ class REST::AccountSerializer < ActiveModel::Serializer
     object.unavailable? ? false : object.indexable
   end
 
-  def emoji_reaction_available_server
-    server_features[:emoji_reaction]
-  end
-
   def server_features
     InstanceInfo.available_features(object.domain)
   end