diff --git a/db/migrate/20211020104237_add_champs_etablissement_id_index.rb b/db/migrate/20211020104237_add_champs_etablissement_id_index.rb
new file mode 100644
index 000000000..444fdb405
--- /dev/null
+++ b/db/migrate/20211020104237_add_champs_etablissement_id_index.rb
@@ -0,0 +1,7 @@
+class AddChampsEtablissementIdIndex < ActiveRecord::Migration[6.1]
+  disable_ddl_transaction!
+
+  def change
+    add_index :champs, :etablissement_id, algorithm: :concurrently
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 219a263a8..b8c245f1c 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: 2021_10_12_100819) do
+ActiveRecord::Schema.define(version: 2021_10_20_104237) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -191,6 +191,7 @@ ActiveRecord::Schema.define(version: 2021_10_12_100819) do
     t.string "fetch_external_data_exceptions", array: true
     t.jsonb "value_json"
     t.index ["dossier_id"], name: "index_champs_on_dossier_id"
+    t.index ["etablissement_id"], name: "index_champs_on_etablissement_id"
     t.index ["parent_id"], name: "index_champs_on_parent_id"
     t.index ["private"], name: "index_champs_on_private"
     t.index ["row"], name: "index_champs_on_row"