diff --git a/db/migrate/20250416131440_create_schedules.rb b/db/migrate/20250416131440_create_schedules.rb
index 9e4ba27..97b1285 100644
--- a/db/migrate/20250416131440_create_schedules.rb
+++ b/db/migrate/20250416131440_create_schedules.rb
@@ -9,6 +9,6 @@ class CreateSchedules < ActiveRecord::Migration[8.0]
 
       t.timestamps
     end
-    add_index :schedules, [:controller_id, :hour, :minute], unique: true
+    add_index :schedules, [ :controller_id, :hour, :minute ], unique: true
   end
 end