diff --git a/app/models/user.rb b/app/models/user.rb
index 137589a..871c43f 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -36,7 +36,7 @@ class User < ApplicationRecord
   validates_length_of :display_name, minimum: 3, maximum: 35, allow_blank: true,
                                      if: -> { defined?(@display_name) }
 
-  validates_uniqueness_of :nostr_pubkey, scope: :ou, allow_blank: true
+  validates_uniqueness_of :nostr_pubkey, allow_blank: true
 
   scope :confirmed,  -> { where.not(confirmed_at: nil) }
   scope :pending,    -> { where(confirmed_at: nil) }