diff --git a/app/forms/projects/update_form.rb b/app/forms/projects/update_form.rb
index 2490fbed6..1a04b7fe4 100644
--- a/app/forms/projects/update_form.rb
+++ b/app/forms/projects/update_form.rb
@@ -3,7 +3,7 @@ class Projects::UpdateForm < BaseForm
   validates :name, presence: true
   validates :name, length: { maximum: 50 }
   validates :description, length: { maximum: 200 }
-  validates :identifier, format: { with: CustomRegexp::REPOSITORY_NAME_REGEX, multiline: true, message: '项目标识只能包含数字,字母,下划线(_),中划线(-),英文句号(.),必须以数字和字母开头，不能以下划线/中划线开头和结尾' }
+  validates :identifier, format: { with: CustomRegexp::REPOSITORY_NAME_REGEX, multiline: true, message: '项目标识只能包含数字,字母,下划线(_),中划线(-),英文句号(.),必须以数字和字母开头，不能以下划线/中划线/英文句号开头和结尾' }
 
   validate do
     check_project_category(project_category_id)