diff --git a/db/migrate/20180404113409_change_birthdate_type_from_individual.rb b/db/migrate/20180404113409_change_birthdate_type_from_individual.rb
new file mode 100644
index 000000000..0b0e750ec
--- /dev/null
+++ b/db/migrate/20180404113409_change_birthdate_type_from_individual.rb
@@ -0,0 +1,6 @@
+class ChangeBirthdateTypeFromIndividual < ActiveRecord::Migration[5.2]
+  def up
+    remove_column :individuals, :birthdate, :string
+    rename_column :individuals, :second_birthdate, :birthdate
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 303a660fd..51e42562f 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_03_094135) do
+ActiveRecord::Schema.define(version: 2018_04_04_113409) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -361,12 +361,11 @@ ActiveRecord::Schema.define(version: 2018_04_03_094135) do
   create_table "individuals", id: :serial, force: :cascade do |t|
     t.string "nom"
     t.string "prenom"
-    t.string "birthdate"
     t.integer "dossier_id"
     t.string "gender"
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.date "second_birthdate"
+    t.date "birthdate"
     t.index ["dossier_id"], name: "index_individuals_on_dossier_id"
   end