diff --git a/app/controllers/api/pm/issues_controller.rb b/app/controllers/api/pm/issues_controller.rb
index 45bc29e3c..788951413 100644
--- a/app/controllers/api/pm/issues_controller.rb
+++ b/app/controllers/api/pm/issues_controller.rb
@@ -91,7 +91,7 @@ class Api::Pm::IssuesController < Api::Pm::BaseController
 
   private
   def check_issue_operate_permission
-    return if params[:project_id].zero?
+    return if params[:project_id].to_i.zero?
     render_forbidden('您没有操作权限！') unless @project.member?(current_user) || current_user.admin? || @issue.user == current_user
   end
   def load_issues