diff --git a/app/models/task.rb b/app/models/task.rb
index 71adf58..4311443 100644
--- a/app/models/task.rb
+++ b/app/models/task.rb
@@ -25,7 +25,7 @@ class Task < ActiveRecord::Base
   belongs_to :requestor, :class_name => 'Person', :foreign_key => :requestor_id
   belongs_to :target, :class_name => 'Profile', :foreign_key => :target_id
 
-  validates_uniqueness_of :code
+  validates_uniqueness_of :code, :on => :create
   validates_presence_of :code
 
   attr_protected :status
--
libgit2 0.21.2