diff --git a/app/models/user.rb b/app/models/user.rb
index 3c0964010..2392bd5f1 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -24,6 +24,7 @@ class User < ApplicationRecord
 
   belongs_to :account
   belongs_to :inviter, class_name: 'User', required: false
+  has_many :invitees, class_name: 'User', foreign_key: 'inviter_id', dependent: :nullify
 
   has_many :assigned_conversations, foreign_key: 'assignee_id', class_name: 'Conversation', dependent: :nullify
   has_many :inbox_members, dependent: :destroy
diff --git a/db/migrate/20191126185833_update_user_invite_foreign_key.rb b/db/migrate/20191126185833_update_user_invite_foreign_key.rb
new file mode 100644
index 000000000..d11f093a1
--- /dev/null
+++ b/db/migrate/20191126185833_update_user_invite_foreign_key.rb
@@ -0,0 +1,6 @@
+class UpdateUserInviteForeignKey < ActiveRecord::Migration[6.0]
+  def change
+    remove_foreign_key :users, column: :inviter_id
+    add_foreign_key :users, :users, column: :inviter_id, on_delete: :nullify
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 9e16ab19f..c27777a94 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2019_11_24_091232) do
+ActiveRecord::Schema.define(version: 2019_11_26_185833) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -224,5 +224,5 @@ ActiveRecord::Schema.define(version: 2019_11_24_091232) do
 
   add_foreign_key "contact_inboxes", "contacts"
   add_foreign_key "contact_inboxes", "inboxes"
-  add_foreign_key "users", "users", column: "inviter_id"
+  add_foreign_key "users", "users", column: "inviter_id", on_delete: :nullify
 end