diff --git a/db/migrate/20180502092852_remove_parent_procedure_foreign_key.rb b/db/migrate/20180502092852_remove_parent_procedure_foreign_key.rb
new file mode 100644
index 000000000..5b466f851
--- /dev/null
+++ b/db/migrate/20180502092852_remove_parent_procedure_foreign_key.rb
@@ -0,0 +1,5 @@
+class RemoveParentProcedureForeignKey < ActiveRecord::Migration[5.2]
+  def change
+    remove_foreign_key :procedures, column: "parent_procedure_id"
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index eec9b4f96..c1b888d2c 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: 2018_04_24_130548) do
+ActiveRecord::Schema.define(version: 2018_05_02_092852) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -574,7 +574,6 @@ ActiveRecord::Schema.define(version: 2018_04_24_130548) do
   add_foreign_key "procedure_paths", "administrateurs"
   add_foreign_key "procedure_paths", "procedures"
   add_foreign_key "procedure_presentations", "assign_tos"
-  add_foreign_key "procedures", "procedures", column: "parent_procedure_id"
   add_foreign_key "received_mails", "procedures"
   add_foreign_key "refused_mails", "procedures"
   add_foreign_key "without_continuation_mails", "procedures"