diff --git a/db/migrate/20180827111451_remove_mark_on_feedbacks.rb b/db/migrate/20180827111451_remove_mark_on_feedbacks.rb
new file mode 100644
index 000000000..8f6a4ec6a
--- /dev/null
+++ b/db/migrate/20180827111451_remove_mark_on_feedbacks.rb
@@ -0,0 +1,5 @@
+class RemoveMarkOnFeedbacks < ActiveRecord::Migration[5.2]
+  def change
+    remove_column :feedbacks, :mark
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index bee9049cc..d6c557ed8 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_08_27_111328) do
+ActiveRecord::Schema.define(version: 2018_08_27_111451) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -320,7 +320,6 @@ ActiveRecord::Schema.define(version: 2018_08_27_111328) do
 
   create_table "feedbacks", force: :cascade do |t|
     t.bigint "user_id"
-    t.integer "mark"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.string "rating", null: false