diff --git a/app/serializers/search_topic_list_item_serializer.rb b/app/serializers/search_topic_list_item_serializer.rb
index b53f67a1001..2dd83d8da78 100644
--- a/app/serializers/search_topic_list_item_serializer.rb
+++ b/app/serializers/search_topic_list_item_serializer.rb
@@ -5,20 +5,11 @@ class SearchTopicListItemSerializer < ListableTopicSerializer
 
   attributes :category_id
 
-  %i{
-    image_url
-    thumbnails
-    title
-    created_at
-    last_posted_at
-    bumped_at
-    bumped
-    highest_post_number
-    reply_count
-    unseen
-  }.each do |attr|
-    define_method("include_#{attr}?") do
-      false
-    end
+  def include_image_url?
+    false
+  end
+
+  def include_thumbnails?
+    false
   end
 end
diff --git a/spec/serializers/search_topic_list_item_serializer_spec.rb b/spec/serializers/search_topic_list_item_serializer_spec.rb
deleted file mode 100644
index 639d1ff73c4..00000000000
--- a/spec/serializers/search_topic_list_item_serializer_spec.rb
+++ /dev/null
@@ -1,42 +0,0 @@
-# frozen_string_literal: true
-
-require 'rails_helper'
-
-RSpec.describe SearchTopicListItemSerializer do
-  fab!(:admin) { Fabricate(:admin) }
-  fab!(:post) { Fabricate(:post) }
-  let(:topic) { post.topic }
-
-  let(:serializer) do
-    SearchTopicListItemSerializer.new(topic, scope: Guardian.new(admin), root: false)
-  end
-
-  it 'should only include the required keys' do
-    current_keys = serializer.as_json.keys
-
-    expected_keys = [
-      :id,
-      :fancy_title,
-      :slug,
-      :posts_count,
-      :archetype,
-      :pinned,
-      :unpinned,
-      :visible,
-      :closed,
-      :archived,
-      :bookmarked,
-      :liked,
-      :category_id
-    ]
-
-    extra_keys = current_keys - expected_keys
-    missing_keys = expected_keys - current_keys
-
-    expect(extra_keys).to eq([]), lambda {
-      "Please verify if the following keys are required as part of the serializer's payload: #{extra_keys.join(", ")}"
-    }
-
-    expect(missing_keys).to eq([])
-  end
-end