diff --git a/db/migrate/20170425112128_create_pipeline_schedules_table.rb b/db/migrate/20170425112128_create_pipeline_schedules_table.rb
index 57df47f5f42..4f9c56a1ad8 100644
--- a/db/migrate/20170425112128_create_pipeline_schedules_table.rb
+++ b/db/migrate/20170425112128_create_pipeline_schedules_table.rb
@@ -17,7 +17,7 @@ class CreatePipelineSchedulesTable < ActiveRecord::Migration
       t.boolean :active, default: true
       t.datetime :deleted_at
 
-      t.timestamps
+      t.timestamps null: true
     end
 
     add_index(:ci_pipeline_schedules, :project_id)