diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 25d8b8d76..54ae85ca0 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -127,9 +127,9 @@ class ProjectsController < ApplicationController
         Gitea::Repository::UpdateService.call(@owner, @project.identifier, gitea_params)
       else
         validate_params = project_params.slice(:name, :description, 
-          :project_category_id, :project_language_id, :private)
+          :project_category_id, :project_language_id, :private, :identifier)
   
-        Projects::UpdateForm.new(validate_params).validate!
+        Projects::UpdateForm.new(validate_params.merge(user_id: @project.user_id)).validate!
   
         private = @project.forked_from_project.present? ? !@project.forked_from_project.is_public : params[:private] || false
 
diff --git a/app/forms/projects/update_form.rb b/app/forms/projects/update_form.rb
index 0cd2c9459..9ccc611cf 100644
--- a/app/forms/projects/update_form.rb
+++ b/app/forms/projects/update_form.rb
@@ -1,11 +1,12 @@
 class Projects::UpdateForm < BaseForm
-  attr_accessor :name, :description, :project_category_id, :project_language_id, :private
+  attr_accessor :name, :description, :project_category_id, :project_language_id, :private, :identifier, :user_id
   validates :name, presence: true
   validates :name, length: { maximum: 50 }
   validates :description, length: { maximum: 200 }
   validate do
     check_project_category(project_category_id)
     check_project_language(project_language_id)
+    check_repository_name(user_id, identifier) unless identifier.blank?
   end
 
 end