diff --git a/app/models/university/organization.rb b/app/models/university/organization.rb
index dc384b1076747652b5b4c19ab9777463cd5e6c1f..f10ac6b36fc6696d53a4afab3863291c940993c2 100644
--- a/app/models/university/organization.rb
+++ b/app/models/university/organization.rb
@@ -74,6 +74,7 @@ class University::Organization < ApplicationRecord
   }
 
   validates_presence_of :name
+  validates_uniqueness_of :name, scope: :university_id
   # Organization can be created from extranet with only their name. Be careful for future validators.
   # There is an attribute accessor above : `created_from_extranet`