diff --git a/app/controllers/internal/users_controller.rb b/app/controllers/internal/users_controller.rb
index fb92171f4..70c6cb936 100644
--- a/app/controllers/internal/users_controller.rb
+++ b/app/controllers/internal/users_controller.rb
@@ -65,7 +65,7 @@ class Internal::UsersController < Internal::ApplicationController
   def merge
     @user = User.find(params[:id])
     begin
-      Moderator::MergeUser.call_merge(admin: current_user, keep_user: @user, delete_user_id: user_params["merge_user_id"])
+      Moderator::MergeUser.call(admin: current_user, keep_user: @user, delete_user_id: user_params["merge_user_id"])
     rescue StandardError => e
       flash[:danger] = e.message
     end
diff --git a/app/services/moderator/merge_user.rb b/app/services/moderator/merge_user.rb
index d2cb9bd5d..7b1cdecc2 100644
--- a/app/services/moderator/merge_user.rb
+++ b/app/services/moderator/merge_user.rb
@@ -1,5 +1,9 @@
 module Moderator
   class MergeUser < ManageActivityAndRoles
+    def self.call(admin:, keep_user:, delete_user_id:)
+      new(keep_user: keep_user, admin: admin, delete_user_id: delete_user_id).merge
+    end
+
     attr_reader :keep_user, :admin, :delete_user_id
 
     def initialize(admin:, keep_user:, delete_user_id:)
@@ -8,10 +12,6 @@ module Moderator
       @delete_user = User.find(delete_user_id.to_i)
     end
 
-    def self.call_merge(admin:, keep_user:, delete_user_id:)
-      new(keep_user: keep_user, admin: admin, delete_user_id: delete_user_id).merge
-    end
-
     def merge
       raise "You cannot merge the same two user id#s" if @delete_user.id == @keep_user.id
 
@@ -56,7 +56,7 @@ module Moderator
       end
       if @delete_user.badge_achievements.any?
         @delete_user.badge_achievements.update_all(user_id: @keep_user.id)
-        @keep_user.badge_achievements_count = @keep_user.badge_achievements.size
+        BadgeAchievement.counter_culture_fix_counts(where: { users: { id: @keep_user.id } })
       end
 
       @keep_user.update_columns(created_at: @delete_user.created_at) if @delete_user.created_at < @keep_user.created_at
diff --git a/spec/services/moderator/merge_user_spec.rb b/spec/services/moderator/merge_user_spec.rb
index 0b0f85eb9..51e9e50d6 100644
--- a/spec/services/moderator/merge_user_spec.rb
+++ b/spec/services/moderator/merge_user_spec.rb
@@ -17,7 +17,7 @@ RSpec.describe Moderator::MergeUser, type: :service do
 
     it "deletes delete_user_id and keeps keep_user" do
       sidekiq_perform_enqueued_jobs do
-        described_class.call_merge(admin: admin, keep_user: keep_user, delete_user_id: delete_user.id)
+        described_class.call(admin: admin, keep_user: keep_user, delete_user_id: delete_user.id)
       end
       expect(User.find_by(id: delete_user_id)).to be_nil
       expect(User.find_by(id: keep_user.id)).not_to be_nil
@@ -32,7 +32,7 @@ RSpec.describe Moderator::MergeUser, type: :service do
       expect(article_reaction.elasticsearch_doc.dig("_source", "reactable", "user", "id")).to eq(delete_user_id)
 
       sidekiq_perform_enqueued_jobs do
-        described_class.call_merge(admin: admin, keep_user: keep_user, delete_user_id: delete_user.id)
+        described_class.call(admin: admin, keep_user: keep_user, delete_user_id: delete_user.id)
       end
       drain_all_sidekiq_jobs
       expect(article.reload.elasticsearch_doc.dig("_source", "user", "id")).to eq(keep_user.id)
@@ -40,5 +40,15 @@ RSpec.describe Moderator::MergeUser, type: :service do
       expect(reaction.reload.elasticsearch_doc.dig("_source", "user_id")).to eq(keep_user.id)
       expect(article_reaction.reload.elasticsearch_doc.dig("_source", "reactable", "user", "id")).to eq(keep_user.id)
     end
+
+    it "updates badge_achievements_count" do
+      create_list(:badge_achievement, 2, user: delete_user)
+
+      sidekiq_perform_enqueued_jobs do
+        described_class.call(admin: admin, keep_user: keep_user, delete_user_id: delete_user.id)
+      end
+
+      expect(keep_user.reload.badge_achievements_count).to eq(2)
+    end
   end
 end