diff --git a/app/models/administrateur.rb b/app/models/administrateur.rb
index cc8ad21b2..399190165 100644
--- a/app/models/administrateur.rb
+++ b/app/models/administrateur.rb
@@ -12,6 +12,8 @@ class Administrateur < ApplicationRecord
   has_many :services
   has_many :dossiers, -> { state_not_brouillon }, through: :procedures
 
+  has_one :user
+
   before_validation -> { sanitize_email(:email) }
 
   scope :inactive, -> { where(active: false) }
diff --git a/app/models/user.rb b/app/models/user.rb
index 7332dee3f..ff6673191 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -18,6 +18,7 @@ class User < ApplicationRecord
   has_many :feedbacks, dependent: :destroy
   has_one :france_connect_information, dependent: :destroy
   belongs_to :instructeur
+  belongs_to :administrateur
 
   accepts_nested_attributes_for :france_connect_information
 
diff --git a/db/migrate/20190809073736_link_user_and_administrateur.rb b/db/migrate/20190809073736_link_user_and_administrateur.rb
new file mode 100644
index 000000000..34ca446dd
--- /dev/null
+++ b/db/migrate/20190809073736_link_user_and_administrateur.rb
@@ -0,0 +1,6 @@
+class LinkUserAndAdministrateur < ActiveRecord::Migration[5.2]
+  def change
+    add_reference :users, :administrateur, index: true
+    add_foreign_key :users, :administrateurs
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 4b29d1dae..fdbf8f457 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_08_08_144607) do
+ActiveRecord::Schema.define(version: 2019_08_09_073736) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -597,6 +597,8 @@ ActiveRecord::Schema.define(version: 2019_08_08_144607) do
     t.datetime "locked_at"
     t.text "unconfirmed_email"
     t.bigint "instructeur_id"
+    t.bigint "administrateur_id"
+    t.index ["administrateur_id"], name: "index_users_on_administrateur_id"
     t.index ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true
     t.index ["email"], name: "index_users_on_email", unique: true
     t.index ["instructeur_id"], name: "index_users_on_instructeur_id"
@@ -644,6 +646,7 @@ ActiveRecord::Schema.define(version: 2019_08_08_144607) do
   add_foreign_key "services", "administrateurs"
   add_foreign_key "trusted_device_tokens", "instructeurs"
   add_foreign_key "types_de_champ", "types_de_champ", column: "parent_id"
+  add_foreign_key "users", "administrateurs"
   add_foreign_key "users", "instructeurs"
   add_foreign_key "without_continuation_mails", "procedures"
 end