diff --git a/app/controllers/api/v1/accounts/credentials_controller.rb b/app/controllers/api/v1/accounts/credentials_controller.rb
index b90036a5cd9..2c46afff609 100644
--- a/app/controllers/api/v1/accounts/credentials_controller.rb
+++ b/app/controllers/api/v1/accounts/credentials_controller.rb
@@ -48,6 +48,7 @@ class Api::V1::Accounts::CredentialsController < Api::BaseController
         default_privacy: source_params.fetch(:privacy, @account.user.setting_default_privacy),
         default_sensitive: source_params.fetch(:sensitive, @account.user.setting_default_sensitive),
         default_language: source_params.fetch(:language, @account.user.setting_default_language),
+        default_quote_policy: source_params.fetch(:quote_policy, @account.user.setting_default_quote_policy),
       },
     }
   end
diff --git a/app/serializers/rest/credential_account_serializer.rb b/app/serializers/rest/credential_account_serializer.rb
index ff6ef7ac49f..0bbb7792cdd 100644
--- a/app/serializers/rest/credential_account_serializer.rb
+++ b/app/serializers/rest/credential_account_serializer.rb
@@ -19,6 +19,7 @@ class REST::CredentialAccountSerializer < REST::AccountSerializer
       discoverable: object.discoverable,
       indexable: object.indexable,
       attribution_domains: object.attribution_domains,
+      quote_policy: user.setting_default_quote_policy,
     }
   end
 
diff --git a/app/serializers/rest/preferences_serializer.rb b/app/serializers/rest/preferences_serializer.rb
index e1c6544608c..5c92023ec65 100644
--- a/app/serializers/rest/preferences_serializer.rb
+++ b/app/serializers/rest/preferences_serializer.rb
@@ -4,6 +4,7 @@ class REST::PreferencesSerializer < ActiveModel::Serializer
   attribute :posting_default_privacy, key: 'posting:default:visibility'
   attribute :posting_default_sensitive, key: 'posting:default:sensitive'
   attribute :posting_default_language, key: 'posting:default:language'
+  attribute :posting_default_quote_policy, key: 'posting:default:quote_policy'
 
   attribute :reading_default_sensitive_media, key: 'reading:expand:media'
   attribute :reading_default_sensitive_text, key: 'reading:expand:spoilers'
@@ -13,6 +14,10 @@ class REST::PreferencesSerializer < ActiveModel::Serializer
     object.user.setting_default_privacy
   end
 
+  def posting_default_quote_policy
+    object.user.setting_default_quote_policy
+  end
+
   def posting_default_sensitive
     object.user.setting_default_sensitive
   end