diff --git a/db/migrate/20200319101825_add_en_construction_conservation_extension_to_dossiers.rb b/db/migrate/20200319101825_add_en_construction_conservation_extension_to_dossiers.rb
index a0b9a241e..cf2b73d62 100644
--- a/db/migrate/20200319101825_add_en_construction_conservation_extension_to_dossiers.rb
+++ b/db/migrate/20200319101825_add_en_construction_conservation_extension_to_dossiers.rb
@@ -1,5 +1,5 @@
 class AddEnConstructionConservationExtensionToDossiers < ActiveRecord::Migration[5.2]
   def change
-    add_column :dossiers, :en_construction_conservation_extension, :interval, :default => 0.days
+    add_column :dossiers, :en_construction_conservation_extension, :interval
   end
 end