diff --git a/app/models/user.rb b/app/models/user.rb
index da3a01a..046b948 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -3,7 +3,7 @@ class User < ApplicationRecord
 
   # Relations
   has_many :invitations, dependent: :destroy
-  has_many :donations
+  has_many :donations, dependent: :nullify
 
   validates_uniqueness_of :cn
   validates_length_of :cn, :minimum => 3