diff --git a/app/models/distributed_press_publisher.rb b/app/models/distributed_press_publisher.rb
index 6139db93..4c3293e3 100644
--- a/app/models/distributed_press_publisher.rb
+++ b/app/models/distributed_press_publisher.rb
@@ -13,8 +13,8 @@ class DistributedPressPublisher < ApplicationRecord
   # @return [IO]
   attr_reader :logger_out
 
-  # La instancia es única
-  validates_uniqueness_of :instance
+  # La instancia es necesaria pero no única
+  validates_presence_of :instance
 
   # El token es necesario
   validates_presence_of :token