diff --git a/app/models/bulk_message.rb b/app/models/bulk_message.rb
index 8f54de120..ca343d701 100644
--- a/app/models/bulk_message.rb
+++ b/app/models/bulk_message.rb
@@ -1,4 +1,5 @@
 class BulkMessage < ApplicationRecord
   belongs_to :instructeur
+  belongs_to :procedure
   has_and_belongs_to_many :groupe_instructeurs, -> { order(:label) }
 end
diff --git a/db/migrate/20240227163855_add_procedure_id_to_bulk_messages.rb b/db/migrate/20240227163855_add_procedure_id_to_bulk_messages.rb
new file mode 100644
index 000000000..afe613e63
--- /dev/null
+++ b/db/migrate/20240227163855_add_procedure_id_to_bulk_messages.rb
@@ -0,0 +1,5 @@
+class AddProcedureIdToBulkMessages < ActiveRecord::Migration[7.0]
+  def change
+    add_column :bulk_messages, :procedure_id, :bigint
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index e9e0173e3..dac0c8a28 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[7.0].define(version: 2024_02_15_164247) do
+ActiveRecord::Schema[7.0].define(version: 2024_02_27_163855) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
   enable_extension "plpgsql"
@@ -224,6 +224,7 @@ ActiveRecord::Schema[7.0].define(version: 2024_02_15_164247) do
     t.string "dossier_state"
     t.bigint "instructeur_id", null: false
     t.datetime "sent_at", precision: nil, null: false
+    t.bigint "procedure_id"
     t.datetime "updated_at", null: false
   end