6 files changed, 7 insertions, 7 deletions
diff --git a/app/controllers/accounts_controller.rb b/app/controllers/accounts_controller.rb
index c270eb000..4dc0a783d 100644
--- a/app/controllers/accounts_controller.rb
+++ b/app/controllers/accounts_controller.rb
@@ -17,7 +17,7 @@ class AccountsController < ApplicationController
       end
 
       format.json do
-        render json: @account, serializer: ActivityPub::ActorSerializer, adapter: ActivityPub::Adapter
+        render json: @account, serializer: ActivityPub::ActorSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
       end
     end
   end
diff --git a/app/controllers/activitypub/outboxes_controller.rb b/app/controllers/activitypub/outboxes_controller.rb
index 30b91f370..9f97ff622 100644
--- a/app/controllers/activitypub/outboxes_controller.rb
+++ b/app/controllers/activitypub/outboxes_controller.rb
@@ -7,7 +7,7 @@ class ActivityPub::OutboxesController < Api::BaseController
     @statuses = @account.statuses.permitted_for(@account, current_account).paginate_by_max_id(20, params[:max_id], params[:since_id])
     @statuses = cache_collection(@statuses, Status)
 
-    render json: outbox_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter
+    render json: outbox_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
   end
 
   private
diff --git a/app/controllers/follower_accounts_controller.rb b/app/controllers/follower_accounts_controller.rb
index 5edb4d67c..0e1949897 100644
--- a/app/controllers/follower_accounts_controller.rb
+++ b/app/controllers/follower_accounts_controller.rb
@@ -10,7 +10,7 @@ class FollowerAccountsController < ApplicationController
       format.html
 
       format.json do
-        render json: collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter
+        render json: collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
       end
     end
   end
diff --git a/app/controllers/following_accounts_controller.rb b/app/controllers/following_accounts_controller.rb
index 7cafe5fda..d4593093f 100644
--- a/app/controllers/following_accounts_controller.rb
+++ b/app/controllers/following_accounts_controller.rb
@@ -10,7 +10,7 @@ class FollowingAccountsController < ApplicationController
       format.html
 
       format.json do
-        render json: collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter
+        render json: collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
       end
     end
   end
diff --git a/app/controllers/statuses_controller.rb b/app/controllers/statuses_controller.rb
index 0cce2ba23..aa24f23c9 100644
--- a/app/controllers/statuses_controller.rb
+++ b/app/controllers/statuses_controller.rb
@@ -20,13 +20,13 @@ class StatusesController < ApplicationController
       end
 
       format.json do
-        render json: @status, serializer: ActivityPub::NoteSerializer, adapter: ActivityPub::Adapter
+        render json: @status, serializer: ActivityPub::NoteSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
       end
     end
   end
 
   def activity
-    render json: @status, serializer: ActivityPub::ActivitySerializer, adapter: ActivityPub::Adapter
+    render json: @status, serializer: ActivityPub::ActivitySerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
   end
 
   private
diff --git a/app/controllers/tags_controller.rb b/app/controllers/tags_controller.rb
index 2cd85e185..3001b2ee3 100644
--- a/app/controllers/tags_controller.rb
+++ b/app/controllers/tags_controller.rb
@@ -12,7 +12,7 @@ class TagsController < ApplicationController
       format.html
 
       format.json do
-        render json: collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter
+        render json: collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
       end
     end
   end